Glasgow Surname Project

Individual research record

John Glasgow

before 1707 – ?

Glasgow-3960 · 2 mapped associations

County Leitrim, Ireland→Death place unknown
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At a glance

Identity & family

Tree links organise the family; documentary status still varies.

2Mapped records
1Close relations
4Evidence items
12Candidate leads
Birth
before 1707 · County Leitrim, Ireland
Death
Not recorded · Place not recorded
Parents
Not recorded
Spouses
Not recorded
Children
James Glasgow
Gender
Male
WikiTree
Glasgow-3960
Research clusters
County Leitrim deed actors — kinship unproved Recent WikiTree profile additions (August 2026)
Mapped descendants
2

Comparison context

These child positions and checks are the subject details used to rank possible parents below.

Naming sequence used by the parentage model

Paternal grandfather positionJames Glasgow (1750)
Maternal grandfather positionNot identifiable from dated child profiles
Maternal grandmother positionNot identifiable from dated child profiles
Paternal grandmother positionNot identifiable from dated child profiles

Known-position checks: 0 support · 0 conflict. Ordinals retain unnamed children and recognise reused names.

Relationship comparison

Potential parents or duplicates

Compare scored leads with the subject details above—not proof.

Higher-signal leadReview carefullyWeak lead

Possible fathers5 leads

Automated fit11/100
Weak Lead
Dates1681–?Generationat most 26 years age gapRecorded placesScotland · County Tyrone, Ireland · County Tyrone — exact locality unprovedIndependent clue breadth · 4Age · Household · Same-Sex Generational Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 69 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a known child was born within 1 years of the subject (+3)
  • bounded birth date gives a parent-child age gap of at most 26 years (+10; true age remains uncertain)

same country, but no indexed locality overlap (−10)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 26 years (+10; true age remains uncertain)
  • candidate's birth is 69 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a known child was born within 1 years of the subject (+3)
  • candidate and subject share the given name John (+4; weak direct parent-child name recurrence, 278 public profiles)

Deductions and cautions: same country, but no indexed locality overlap (−10)

Automated fit8/100
Weak Lead
Dates1680–?Generationat most 27 years age gapRecorded placesCounty Antrim — exact locality unprovedIndependent clue breadth · 3Age · Same-Sex Generational Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 70 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 27 years (+10; true age remains uncertain)
  • candidate and subject share the given name John (+4; weak direct parent-child name recurrence, 278 public profiles)

same country, but no indexed locality overlap (−10)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 27 years (+10; true age remains uncertain)
  • candidate's birth is 70 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • candidate and subject share the given name John (+4; weak direct parent-child name recurrence, 278 public profiles)

Deductions and cautions: same country, but no indexed locality overlap (−10)

Show 3 lower-scoring possible fathers
Automated fit8/100
Weak Lead
Dates1664–?Generationnominally 43 years; true gap uncertain age gapRecorded placesIreland · County Londonderry, Ireland · County Antrim — exact locality unprovedIndependent clue breadth · 3Age · Same-Sex Generational Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 86 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of nominally 43 years; true gap uncertain (+10; true age remains uncertain)
  • candidate and subject share the given name John (+4; weak direct parent-child name recurrence, 278 public profiles)

same country, but no indexed locality overlap (−10)

Show complete scoring
  • bounded birth date gives a parent-child age gap of nominally 43 years; true gap uncertain (+10; true age remains uncertain)
  • candidate's birth is 86 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • candidate and subject share the given name John (+4; weak direct parent-child name recurrence, 278 public profiles)

Deductions and cautions: same country, but no indexed locality overlap (−10)

Automated fit2/100
Weak Lead
Dates1700–1759Generationnominally 7 years; approximate dates permit about 16–17 years age gapRecorded placesCounty Tyrone, Ireland · Drumearn, Tyrone, Ireland · Cookstown estate areaIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • the nominal 7-year gap is too small, but the approximate birth date permits a narrow biologically viable interval (16–17 years) (+4)
  • candidate's birth is 50 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • candidate's name matches the first dated son James Glasgow, the expected father position for a male subject (+4; catalogue rarity 0, James in 224 profiles)

parentage requires the approximate birth estimate to be early enough (no deduction); same country, but no indexed locality overlap (−10)

Show complete scoring
  • the nominal 7-year gap is too small, but the approximate birth date permits a narrow biologically viable interval (16–17 years) (+4)
  • candidate's birth is 50 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • candidate's name matches the first dated son James Glasgow, the expected father position for a male subject (+4; catalogue rarity 0, James in 224 profiles)

Deductions and cautions: parentage requires the approximate birth estimate to be early enough (no deduction); same country, but no indexed locality overlap (−10)

Automated fit2/100
Weak Lead
Dates1680–1753Generationat most 27 years age gapRecorded placesIreland · Worcester County, Maryland · Ireland — exact locality unprovedIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 70 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 27 years (+10; true age remains uncertain)
  • candidate's name matches the first dated son James Glasgow, the expected father position for a male subject (+4; catalogue rarity 0, James in 224 profiles)

same country, but no indexed locality overlap (−10); subject lies more than 20 years from the candidate's known child-bearing period (−6; children may be missing)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 27 years (+10; true age remains uncertain)
  • candidate's birth is 70 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • candidate's name matches the first dated son James Glasgow, the expected father position for a male subject (+4; catalogue rarity 0, James in 224 profiles)

Deductions and cautions: same country, but no indexed locality overlap (−10); subject lies more than 20 years from the candidate's known child-bearing period (−6; children may be missing)

Possible mothers5 leads

Automated fit7/100
Weak Lead
Dates1678–1755Generationat most 29 years age gapRecorded placesIreland · Ireland — exact locality unprovedIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 72 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 29 years (+10; true age remains uncertain)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

same country, but no indexed locality overlap (−10)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 29 years (+10; true age remains uncertain)
  • candidate's birth is 72 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

Deductions and cautions: same country, but no indexed locality overlap (−10)

Automated fit6/100
Weak Lead
Dates1680–?Generationat most 27 years age gapRecorded placesEdinburghIndependent clue breadth · 5Age · Contemporaneous Household Conflict · Household · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 70 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a known child was born within 4 years of the subject (+1)
  • bounded birth date gives a parent-child age gap of at most 27 years (+10; true age remains uncertain)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction); candidate's household recorded Robert Glasgow in Edinburgh, Midlothian, Scotland within 4 years of the subject (−12; no contemporaneous child is indexed in the subject's locality)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 27 years (+10; true age remains uncertain)
  • candidate's birth is 70 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a known child was born within 4 years of the subject (+1)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction); candidate's household recorded Robert Glasgow in Edinburgh, Midlothian, Scotland within 4 years of the subject (−12; no contemporaneous child is indexed in the subject's locality)

Show 3 lower-scoring possible mothers
Automated fit0/100
Weak Lead
Dates1690–?Generationat most 17 years age gapRecorded placesSkirling, Peeblesshire, Scotland, United Kingdom · Skirling — PeeblesshireIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 60 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 17 years (+10; true age remains uncertain)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

candidate is recorded only outside the subject's birth country (−25)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 17 years (+10; true age remains uncertain)
  • candidate's birth is 60 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

Deductions and cautions: candidate is recorded only outside the subject's birth country (−25)

Automated fit0/100
Weak Lead
Dates1670–?Generationat most 37 years age gapRecorded placesKilwinning — AyrshireIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 80 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 37 years (+10; true age remains uncertain)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

candidate is recorded only outside the subject's birth country (−25)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 37 years (+10; true age remains uncertain)
  • candidate's birth is 80 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

Deductions and cautions: candidate is recorded only outside the subject's birth country (−25)

Automated fit0/100
Weak Lead
Dates1660–?Generationat most 47 years age gapRecorded placesEdinburgh, Midlothian, Scotland · EdinburghIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 90 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 47 years (+10; true age remains uncertain)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

candidate is recorded only outside the subject's birth country (−25)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 47 years (+10; true age remains uncertain)
  • candidate's birth is 90 years before the subject's earliest dated child (1750), a compatible grandparent-generation interval (+4)
  • a candidate spouse matches the first dated son James Glasgow, the expected father position (+3; James in 224 profiles)

Deductions and cautions: candidate is recorded only outside the subject's birth country (−25)

How parent leads are calculated

Automated leads use birth surnames—not married surnames—as parental eligibility, role-specific biological age limits, bounded and approximate-date uncertainty, household chronology, specific time-aware localities, mapped distance, tenancy succession, migration destinations and sex-aware Scottish naming positions across generations. People already attached as the subject's parents stay in the identity summary and are excluded from this alternative-candidate list, regardless of relationship confidence. The main calibration uses clues available on disconnected profiles; existing parent and sibling links are retained as comparison context rather than treated as transferable evidence. Common ordered names and grandparent-to-child echoes receive a small non-zero weight, so a John or James match can support several independent criteria without producing a lead alone. Rare names, repeated bearers and bundles across otherwise distinct branches receive substantially more weight according to catalogue frequency. An exact migration place is weighted by its rarity and repetition across both branches; a shared destination country is worth only one point. Extra weight is added only when at least three independent clue types converge: naming, locality, specific migration, household chronology or collateral networks. Sparse profiles retain a clearly labelled chronology-only fallback instead of disappearing. Countries, states, counties and research clusters do not count as a shared locality, and fallback, broad representative or kin-inferred coordinates are excluded from distance scoring. Shared descendant profiles are removed before branch-name comparison. A candidate already recorded as a parent-in-law is excluded. A confident or independently supported parent is treated as settled; uncertain and unassessed attachments remain open to alternative comparison. A different linked parent, an uncle/aunt or grandparent path, and a matching existing child profile prevent an alternative from being classified as a strong direct-parent lead until the underlying tree conflict or duplicate is resolved. Familiar forms such as Bessie are normalised. Surname remains an eligibility filter worth zero points.

Naming customs, shared farms and occupations are circumstantial. Children, spouses and collateral relatives may be missing, and tree-derived family networks are not independent evidence. Scores rank research leads; they do not prove parentage.

Same-name candidate

John GlasgowGlasgow-3959

Automated fit43/100
Similar Person
Dates1705–?PlacesCounty Antrim, IrelandParent comparisonNo shared parent is indexed
Why it may fit
  • same first and last name (+18)
  • birth years within 2 (+25)

No indexed conflict

Full comparison detail
  • same first and last name (+18)
  • birth years within 2 (+25)

Conflicts: No indexed conflict

Open side-by-side comparison

Same-name candidate

John GlasgowGlasgow-1444

Automated fit43/100
Similar Person
Dates1708–?PlacesStitchel, Roxburghshire, ScotlandParent comparisonNo shared parent is indexed
Why it may fit
  • same first and last name (+18)
  • birth years within 1 (+25)

No indexed conflict

Full comparison detail
  • same first and last name (+18)
  • birth years within 1 (+25)

Conflicts: No indexed conflict

Open side-by-side comparison
How duplicate leads are calculated

Dates are eligibility gates, not merely deductions: chronologically impossible people are excluded. Dates, places, spouses, parent certainty and children's profiles and names are then compared. A high score is a prompt to inspect records, not a merge recommendation.

Open only what you need

Research & records

Latest case researchThe current conclusion from the durable research case file.Updated

Current conclusion

Glasgow-3960 · updated 2026-08-09

Registry of Deeds memorial 38,213 records John Glasgow, gentleman, of Gortigillagh, County Leitrim, as a witness on 30 May 1728. Gortigillagh is strongly matched to modern Gortaggle in Annaduff parish. This is a genuine same-generation Irish candidate for comparison with John-551, but no record connects him to the traditional County Tyrone family.

Within the Registry of Deeds Index Project's currently indexed Glasgow entries, he is the only named John before 1750. That is an index-bound observation, not proof that no other John existed.

Life and record timelineChronological mapped occurrences and their underlying sources.2 records
before 1707

Recent-edit profile location: County Leitrim — exact locality unproved

County Leitrim — exact locality unproved

Added from the 6 August 2026 recent-edit reconciliation; profile fields are research leads, not source evidence.

Recent WikiTree profile leadunknown
Source and mapping detail

WikiTree profile export for Glasgow-3960

No sufficiently specific citation match found.

Precision: County-level representative point

30 May 1728

Registry of Deeds memorial 38213

Gortaggle townland — Annaduff parish

John Glasgow, gentleman of Gortigillagh, was a witness to the agreement. No party was identified as his relative. Logainm's 1715 Gortogill/Cortogill spelling makes modern Gortaggle the strong locality match.

Documented occurrenceoriginal
Source and mapping detail

Registry of Deeds Index Project, memorial 38213

Explicitly attached to this mapped association.

Precision: Exact townland centrepoint

Case-file source findingsSource extracts and analysis regenerated from findings.md.1 section(s)

Source findings

Glasgow-3960 · updated 2026-08-09

SourceFindingAssessment
Registry of Deeds Index Project, memorial 38,213, vol. 57, p. 235Agreement dated 30 May and registered 11 July 1728; John Glasgow, gentleman of Gortigillagh, witnessed a Johnston-network transaction involving Cashellmenon, Aghadunvane and Aghmuldoney, with Bartley McGowan and John Gilhuly.Derivative abstract of an original deed. Direct for the indexed name, status and residence; no age or kinship.
Logainm, GortaggleRecords near-contemporary forms Gortogill and Cortogill in a 1715 Registry deed.Strong place-name resolution, not family evidence.
Evidence assessmentWhat is supported, uncertain or disputed in the current case model.3 claims
2Derivative
1Original
1Tree Only

Documented or strongly supported

John Glasgow was recorded in Gortaggle townland — Annaduff parish (30 May 1728).

proved1 linked evidence item

Registry of Deeds memorial 38213

Working hypotheses and conflicts

No claims in this category have been formally assessed.

Research questionsOpen problems, missing bridges and the next records to inspect.0 open

No formal open question is recorded for this person.

Case-file priorities and cautions

Priority research

Glasgow-3960 · updated 2026-08-09

  • Obtain the original memorial and verify residence, status, signature or mark,

witness order and all spellings.

  • Reconstruct the Johnston, McGowan and Gilhuly FAN network before considering

any link to John-551.

Sources and provenanceStructured citations and source-quality classifications.4 sources

Source or provenance: quality describes the record layer, not every conclusion drawn from it.

  1. derivative Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728. (https://irishdeedsindex.net/mem.php?memorial=38213)
  2. derivative Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim. (https://www.logainm.ie/en/29477)
  3. tree_only WikiTree profile export for Glasgow-3960
  4. original Registry of Deeds Index Project, memorial 38213
Technical profile and raw captureDataset metadata, machine dossier and captured WikiTree biography.Advanced

WikiTree profile information

Dataset: ONT_Glasco_2026-08-18T16_05.json · generated 2026-08-20

Machine-readable dossier

WikiTree biography, citations and relationship snapshot

Glasgow-3960 was captured 2026-08-09T11:27:23+00:00; WikiTree profile revision 2026-08-06.

Profile location claims

EventDateLocationStatus
birth—County Leitrim, IrelandWikiTree profile field

Immediate relationship snapshot

RelationshipPersonWikiTree IDDates and places returned
ChildrenJames GlasgowGlasgow-31241750-00-00 · County Leitrim, Ireland · 0000-00-00

Record-bearing passages

  • Biography John Glasgow was born before about 1707, probably in or near Rossinver Parish, County Leitrim, Ireland. His birth date and birthplace are estimates based on his being recorded as an adult gentleman in 1728. Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728 and registered 11 July 1728. (https://irishdeedsindex.net/mem.php?memorial=38213)
  • John Glasgow witnessed the deed alongside Bartley McGowan, a servant resident at Aghadunvane.
  • The place recorded as Gortigillagh is probably modern Gortnasillagh, a townland in Rossinver civil parish, County Leitrim. Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim. (https://www.logainm.ie/en/29477)

  • John's date and place of death are unknown. Family

    • Parents: Unknown
    • Spouse: Unknown
    • Children: None presently proved Residence John was associated with Gortigillagh, County Leitrim, in 1728.

  • Rossinver civil parish;

    • Rosclogher barony; and
    • County Leitrim.
  • Gortnasillagh lies in the same north Leitrim district as Aghadunvane, where Robert Johnston was resident in 1728 and where a later James Glasgow was associated during the 18th century. Possible Relationship to James Glasgow John may have been related to James Glasgow of Lareen and Aghadunvane, County Leitrim.
  • James was probably the gentleman of Lareen named in a 1775 marriage settlement and was later identified in a published Montgomery pedigree as James Glasgow of Aughadenvarn, County Leitrim, Esquire.
  • No record located so far identifies James as John's son. John should therefore not presently be attached as James's father. Estimated Birth John's birth before about 1707 is an estimate.
  • He was described as a gentleman and acted as a witness to a legal agreement on 30 May 1728. Assuming that he was at least twenty-one years old, he would have been born no later than approximately 1707.
  • He may have been considerably older. A broad working range of approximately 1680–1707 is possible, but no baptismal, birth or age record has been located.
  • His estimated birthplace in County Leitrim is based only on his residence there in 1728. It is not proof that he was born in the county. Research NotesIdentity of Gortigillagh The Registry of Deeds index transcribes John's residence as Gortigillagh.
  • No modern townland of that exact spelling has been identified in County Leitrim. The strongest candidate is Gortnasillagh in Rossinver parish because:

  • it has numerous historical spelling variants;

    • it is situated in the relevant north Leitrim district;
    • it appears in Registry of Deeds material by 1718; and
    • it is geographically associated with Aghadunvane.
  • The identification should remain qualified as probable until the original memorial image or another contemporary record confirms the spelling. Nature of the 1728 Record The surviving online entry is an abstract or index of Registry of Deeds memorial 38213 rather than a full transcription of the original memorial.

  • type of deed: agreement;

    • date of deed: 30 May 1728;
    • registration date: 11 July 1728;
    • volume 57;
    • page 235;
    • memorial 38213; and
    • John Glasgow of Gortigillagh as a gentleman and deed witness.
  • The original memorial should be examined before drawing further conclusions. Johnston Connection John witnessed a transaction involving Robert Johnston of Aghadunvane. This indicates some form of social, professional or local connection with the Johnston family.

  • John was a neighbouring landholder or tenant;

    • he was a legal or estate associate;
    • he was related by marriage;
    • he was a trusted local witness; or
    • he had another business connection with the parties.
  • The deed abstract does not establish which explanation is correct. Further Research Research should focus on:

  • obtaining and transcribing the original Registry of Deeds memorial 38213;

    • searching earlier deeds concerning Gortnasillagh;
    • examining memorial 12465, volume 21, page 549, concerning Gortnasillagh in 1718;
    • searching Johnston deeds for further appearances by John Glasgow;
    • searching leases, wills and estate papers relating to Rossinver parish;
    • identifying any Glasgow households in Aghadunvane, Gortnasillagh or Lareen;
    • locating a will or administration record for John;
    • identifying John's wife and children; and
    • establishing whether John was related to James Glasgow of Lareen and Aghadunvane. Research Conclusion John Glasgow is documented as a gentleman of Gortigillagh, County Leitrim, in 1728.
  • Gortigillagh was probably modern Gortnasillagh in Rossinver parish, although the original memorial should be checked to confirm the placename.
  • John is the strongest currently identified candidate for an older relative of James Glasgow of Lareen and Aghadunvane. The chronology and geography permit a father-and-son relationship, but no record presently proves it.

  • John's parents, wife, children, exact birth, death and relationship to James Glasgow remain unknown. Sources

Profile source citations

  1. Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728 and registered 11 July 1728. (https://irishdeedsindex.net/mem.php?memorial=38213) source link 1
  2. The agreement was made between: * James Johnston, gentleman, of Cashellmenon, County Donegal; and * Robert Johnston, gentleman, of Aghadunvane, County Leitrim. John Glasgow witnessed the deed alongside Bartley McGowan, a servant resident at Aghadunvane. The place recorded as Gortigillagh is probably modern Gortnasillagh, a townland in Rossinver civil parish, County Leitrim. Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim. (https://www.logainm.ie/en/29477) source link 1
  3. Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728. (https://irishdeedsindex.net/mem.php?memorial=38213) source link 1
  4. Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim. (https://www.logainm.ie/en/29477) source link 1
Full captured biography text
Biography
John Glasgow was born before about 1707, probably in or near Rossinver Parish, County Leitrim, Ireland. His birth date and birthplace are estimates based on his being recorded as an adult gentleman in 1728. Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728 and registered 11 July 1728. (https://irishdeedsindex.net/mem.php?memorial=38213) 

His parents, wife and children have not been identified.

John was described as John Glasgow, gentleman, of Gortigillagh, County Leitrim, when he witnessed an agreement dated 30 May 1728. 

The agreement was made between:

* James Johnston, gentleman, of Cashellmenon, County Donegal; and
* Robert Johnston, gentleman, of Aghadunvane, County Leitrim.

John Glasgow witnessed the deed alongside Bartley McGowan, a servant resident at Aghadunvane. 

The place recorded as Gortigillagh is probably modern Gortnasillagh, a townland in Rossinver civil parish, County Leitrim. Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim. (https://www.logainm.ie/en/29477) 

Historical forms of Gortnasillagh include:

* Gotrtnesillagh;
* Gortnasvillagh;
* Gortnesillagh;
* Gurtnessill;
* Gortnessillagh;
* Gortnesilla;
* Gurtnesill; and
* Gortenesillagh. 

These variations support, but do not conclusively prove, the identification of Gortigillagh with Gortnasillagh.

John's date and place of death are unknown.
Family
* Parents: Unknown
* Spouse: Unknown
* Children: None presently proved
Residence
John was associated with Gortigillagh, County Leitrim, in 1728. 

Gortigillagh was probably Gortnasillagh, a townland in:

* Rossinver civil parish;
* Rosclogher barony; and
* County Leitrim. 

Gortnasillagh lies in the same north Leitrim district as Aghadunvane, where Robert Johnston was resident in 1728 and where a later James Glasgow was associated during the 18th century.
Possible Relationship to James Glasgow
John may have been related to James Glasgow of Lareen and Aghadunvane, County Leitrim.

James was probably the gentleman of Lareen named in a 1775 marriage settlement and was later identified in a published Montgomery pedigree as James Glasgow of Aughadenvarn, County Leitrim, Esquire.

The evidence supporting a possible relationship includes:

* the uncommon Glasgow surname;
* the description of both men as gentlemen;
* their association with the same part of north County Leitrim;
* John's connection with Robert Johnston of Aghadunvane in 1728; and
* James's later association with Aghadunvane or nearby Lareen.

The chronology would permit John to have been:

* James's father;
* James's grandfather;
* an uncle;
* an older cousin; or
* another member of the same local Glasgow family.

No record located so far identifies James as John's son. John should therefore not presently be attached as James's father.
Estimated Birth
John's birth before about 1707 is an estimate.

He was described as a gentleman and acted as a witness to a legal agreement on 30 May 1728. Assuming that he was at least twenty-one years old, he would have been born no later than approximately 1707.

He may have been considerably older. A broad working range of approximately 1680–1707 is possible, but no baptismal, birth or age record has been located.

His estimated birthplace in County Leitrim is based only on his residence there in 1728. It is not proof that he was born in the county.
Research NotesIdentity of Gortigillagh
The Registry of Deeds index transcribes John's residence as Gortigillagh. 

No modern townland of that exact spelling has been identified in County Leitrim. The strongest candidate is Gortnasillagh in Rossinver parish because:

* it has numerous historical spelling variants;
* it is situated in the relevant north Leitrim district;
* it appears in Registry of Deeds material by 1718; and
* it is geographically associated with Aghadunvane.

The identification should remain qualified as probable until the original memorial image or another contemporary record confirms the spelling.
Nature of the 1728 Record
The surviving online entry is an abstract or index of Registry of Deeds memorial 38213 rather than a full transcription of the original memorial.

It records:

* type of deed: agreement;
* date of deed: 30 May 1728;
* registration date: 11 July 1728;
* volume 57;
* page 235;
* memorial 38213; and
* John Glasgow of Gortigillagh as a gentleman and deed witness. 

The abstract does not state:

* John's age;
* his parents;
* his wife;
* his children;
* his property;
* his relationship to the Johnston parties; or
* his relationship to the later James Glasgow.

The original memorial should be examined before drawing further conclusions.
Johnston Connection
John witnessed a transaction involving Robert Johnston of Aghadunvane. This indicates some form of social, professional or local connection with the Johnston family.

Possible explanations include:

* John was a neighbouring landholder or tenant;
* he was a legal or estate associate;
* he was related by marriage;
* he was a trusted local witness; or
* he had another business connection with the parties.

The deed abstract does not establish which explanation is correct.
Further Research
Research should focus on:

* obtaining and transcribing the original Registry of Deeds memorial 38213;
* searching earlier deeds concerning Gortnasillagh;
* examining memorial 12465, volume 21, page 549, concerning Gortnasillagh in 1718;
* searching Johnston deeds for further appearances by John Glasgow;
* searching leases, wills and estate papers relating to Rossinver parish;
* identifying any Glasgow households in Aghadunvane, Gortnasillagh or Lareen;
* locating a will or administration record for John;
* identifying John's wife and children; and
* establishing whether John was related to James Glasgow of Lareen and Aghadunvane.
Research Conclusion
John Glasgow is documented as a gentleman of Gortigillagh, County Leitrim, in 1728.

Gortigillagh was probably modern Gortnasillagh in Rossinver parish, although the original memorial should be checked to confirm the placename.

John is the strongest currently identified candidate for an older relative of James Glasgow of Lareen and Aghadunvane. The chronology and geography permit a father-and-son relationship, but no record presently proves it.

John's parents, wife, children, exact birth, death and relationship to James Glasgow remain unknown.
Sources
* Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728. (https://irishdeedsindex.net/mem.php?memorial=38213)
* Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim. (https://www.logainm.ie/en/29477)
Raw WikiTree biography markup
== Biography ==

'''John Glasgow''' was born before about '''1707''', probably in or near '''Rossinver Parish, County Leitrim, Ireland'''. His birth date and birthplace are estimates based on his being recorded as an adult gentleman in 1728.<ref name="Deed1728">[https://irishdeedsindex.net/mem.php?memorial=38213 Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728 and registered 11 July 1728.]</ref>

His parents, wife and children have not been identified.

John was described as '''John Glasgow, gentleman, of Gortigillagh, County Leitrim''', when he witnessed an agreement dated '''30 May 1728'''.<ref name="Deed1728" />

The agreement was made between:

* '''James Johnston''', gentleman, of Cashellmenon, County Donegal; and
* '''Robert Johnston''', gentleman, of Aghadunvane, County Leitrim.

John Glasgow witnessed the deed alongside '''Bartley McGowan''', a servant resident at Aghadunvane.<ref name="Deed1728" />

The place recorded as '''Gortigillagh''' is probably modern '''Gortnasillagh''', a townland in Rossinver civil parish, County Leitrim.<ref name="Gortnasillagh">[https://www.logainm.ie/en/29477 Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim.]</ref>

Historical forms of Gortnasillagh include:

* Gotrtnesillagh;
* Gortnasvillagh;
* Gortnesillagh;
* Gurtnessill;
* Gortnessillagh;
* Gortnesilla;
* Gurtnesill; and
* Gortenesillagh.<ref name="Gortnasillagh" />

These variations support, but do not conclusively prove, the identification of Gortigillagh with Gortnasillagh.

John's date and place of death are unknown.

== Family ==

* '''Parents:''' Unknown
* '''Spouse:''' Unknown
* '''Children:''' None presently proved

== Residence ==

John was associated with '''Gortigillagh, County Leitrim''', in 1728.<ref name="Deed1728" />

Gortigillagh was probably Gortnasillagh, a townland in:

* Rossinver civil parish;
* Rosclogher barony; and
* County Leitrim.<ref name="Gortnasillagh" />

Gortnasillagh lies in the same north Leitrim district as '''Aghadunvane''', where Robert Johnston was resident in 1728 and where a later James Glasgow was associated during the 18th century.

== Possible Relationship to James Glasgow ==

John may have been related to '''James Glasgow of Lareen and Aghadunvane''', County Leitrim.

James was probably the gentleman of Lareen named in a 1775 marriage settlement and was later identified in a published Montgomery pedigree as '''James Glasgow of Aughadenvarn, County Leitrim, Esquire'''.

The evidence supporting a possible relationship includes:

* the uncommon Glasgow surname;
* the description of both men as gentlemen;
* their association with the same part of north County Leitrim;
* John's connection with Robert Johnston of Aghadunvane in 1728; and
* James's later association with Aghadunvane or nearby Lareen.

The chronology would permit John to have been:

* James's father;
* James's grandfather;
* an uncle;
* an older cousin; or
* another member of the same local Glasgow family.

No record located so far identifies James as John's son. John should therefore '''not''' presently be attached as James's father.

== Estimated Birth ==

John's birth before about '''1707''' is an estimate.

He was described as a gentleman and acted as a witness to a legal agreement on 30 May 1728. Assuming that he was at least twenty-one years old, he would have been born no later than approximately 1707.

He may have been considerably older. A broad working range of approximately '''1680–1707''' is possible, but no baptismal, birth or age record has been located.

His estimated birthplace in County Leitrim is based only on his residence there in 1728. It is not proof that he was born in the county.

== Research Notes ==

=== Identity of Gortigillagh ===

The Registry of Deeds index transcribes John's residence as '''Gortigillagh'''.<ref name="Deed1728" />

No modern townland of that exact spelling has been identified in County Leitrim. The strongest candidate is '''Gortnasillagh''' in Rossinver parish because:

* it has numerous historical spelling variants;
* it is situated in the relevant north Leitrim district;
* it appears in Registry of Deeds material by 1718; and
* it is geographically associated with Aghadunvane.

The identification should remain qualified as probable until the original memorial image or another contemporary record confirms the spelling.

=== Nature of the 1728 Record ===

The surviving online entry is an abstract or index of Registry of Deeds memorial 38213 rather than a full transcription of the original memorial.

It records:

* type of deed: agreement;
* date of deed: 30 May 1728;
* registration date: 11 July 1728;
* volume 57;
* page 235;
* memorial 38213; and
* John Glasgow of Gortigillagh as a gentleman and deed witness.<ref name="Deed1728" />

The abstract does not state:

* John's age;
* his parents;
* his wife;
* his children;
* his property;
* his relationship to the Johnston parties; or
* his relationship to the later James Glasgow.

The original memorial should be examined before drawing further conclusions.

=== Johnston Connection ===

John witnessed a transaction involving Robert Johnston of Aghadunvane. This indicates some form of social, professional or local connection with the Johnston family.

Possible explanations include:

* John was a neighbouring landholder or tenant;
* he was a legal or estate associate;
* he was related by marriage;
* he was a trusted local witness; or
* he had another business connection with the parties.

The deed abstract does not establish which explanation is correct.

=== Further Research ===

Research should focus on:

* obtaining and transcribing the original Registry of Deeds memorial 38213;
* searching earlier deeds concerning Gortnasillagh;
* examining memorial 12465, volume 21, page 549, concerning Gortnasillagh in 1718;
* searching Johnston deeds for further appearances by John Glasgow;
* searching leases, wills and estate papers relating to Rossinver parish;
* identifying any Glasgow households in Aghadunvane, Gortnasillagh or Lareen;
* locating a will or administration record for John;
* identifying John's wife and children; and
* establishing whether John was related to James Glasgow of Lareen and Aghadunvane.

== Research Conclusion ==

John Glasgow is documented as a gentleman of Gortigillagh, County Leitrim, in 1728.

Gortigillagh was probably modern Gortnasillagh in Rossinver parish, although the original memorial should be checked to confirm the placename.

John is the strongest currently identified candidate for an older relative of James Glasgow of Lareen and Aghadunvane. The chronology and geography permit a father-and-son relationship, but no record presently proves it.

John's parents, wife, children, exact birth, death and relationship to James Glasgow remain unknown.

== Sources ==

<references />

* [https://irishdeedsindex.net/mem.php?memorial=38213 Registry of Deeds Index Project, memorial 38213, volume 57, page 235, agreement dated 30 May 1728.]
* [https://www.logainm.ie/en/29477 Placenames Database of Ireland, “Gort na Saileach/Gortnasillagh”, Rossinver civil parish, County Leitrim.]