Glasgow Surname Project

Individual research record

Thomas Glasco

before 1742 – ?

Glasco-173 · 1 mapped association

Birthplace unknown→Death place unknown
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At a glance

Identity & family

Tree links organise the family; documentary status still varies.

1Mapped records
1Close relations
2Evidence items
12Candidate leads
Birth
before 1742 · Place not recorded
Death
Not recorded · Place not recorded
Parents
Not recorded
Spouses
Not recorded
Children
Thomas Glasco
Gender
Male
WikiTree
Glasco-173
Research clusters
Ireland One-Tree profile leads
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 positionThomas Glasco (1753)
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 fit22/100
Weak Lead
Dates1700–?Generationnominally 42 years; true gap uncertain age gapRecorded placesLivingston, West Lothian, Scotland · Livingston — West LothianIndependent clue breadth · 4Age · Same-Sex Generational Naming · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 53 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of nominally 42 years; true gap uncertain (+10; true age remains uncertain)
  • candidate and subject share the given name Thomas (+4; weak direct parent-child name recurrence, 86 public profiles)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Show complete scoring
  • bounded birth date gives a parent-child age gap of nominally 42 years; true gap uncertain (+10; true age remains uncertain)
  • candidate's birth is 53 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • candidate and subject share the given name Thomas (+4; weak direct parent-child name recurrence, 86 public profiles)
  • candidate's name matches the first dated son Thomas Glasco, the expected father position for a male subject (+4; catalogue rarity 0, Thomas in 86 profiles)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Automated fit19/100
Weak Lead
Dates1715–?Generationat most 27 years age gapRecorded placesEdinburgh, Midlothian, Scotland · EdinburghIndependent clue breadth · 4Age · Same-Sex Generational Naming · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 38 years before the subject's earliest dated child (1753), a marginal two-generation interval (+1)
  • 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 Thomas (+4; weak direct parent-child name recurrence, 86 public profiles)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

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 38 years before the subject's earliest dated child (1753), a marginal two-generation interval (+1)
  • candidate and subject share the given name Thomas (+4; weak direct parent-child name recurrence, 86 public profiles)
  • candidate's name matches the first dated son Thomas Glasco, the expected father position for a male subject (+4; catalogue rarity 0, Thomas in 86 profiles)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Show 3 lower-scoring possible fathers
Automated fit10/100
Weak Lead
Dates1684–?Generationat most 58 years age gapRecorded placesEdinburgh Parish, Edinburgh, Midlothian, Scotland · EdinburghIndependent clue breadth · 4Age · Same-Sex Generational Naming · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 69 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • less typical 58-year parent-child age gap (+2)
  • candidate and subject share the given name Thomas (+4; weak direct parent-child name recurrence, 86 public profiles)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction); candidate already has another child named Thomas Glasgow (Glasgow-1243) without a documented death permitting name reuse (−4; check whether the child profiles duplicate or conflict)

Show complete scoring
  • less typical 58-year parent-child age gap (+2)
  • candidate's birth is 69 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • candidate and subject share the given name Thomas (+4; weak direct parent-child name recurrence, 86 public profiles)
  • candidate's name matches the first dated son Thomas Glasco, the expected father position for a male subject (+4; catalogue rarity 0, Thomas in 86 profiles)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction); candidate already has another child named Thomas Glasgow (Glasgow-1243) without a documented death permitting name reuse (−4; check whether the child profiles duplicate or conflict)

Automated fit32/100
Chronology-Only Fallback
Dates1711–?Generationat most 31 years age gapRecorded placesUphall, West Lothian, Scotland · Christ Church / Trinity Lane district — Dublin · Christ Church district — DublinIndependent clue breadth · 6Age · Common Grandparent Birth-Order Naming · Household · Indirect Multi-Factor Convergence · Two-Generation · Undated LocalityCurrent relationshipNot currently linked as parent
Strongest signals
  • same specific indexed locality despite wider place-label differences: dublin (+10)
  • 3 independent unlinked-profile clue types converge (+5): household chronology, locality, naming
  • candidate's birth is 42 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)

No indexed conflict; documentary proof still required

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 31 years (+10; true age remains uncertain)
  • candidate's birth is 42 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • same specific indexed locality despite wider place-label differences: dublin (+10)
  • a known child was born within 8 years of the subject (+1)
  • the subject would fill the first son position among the candidate's dated children, and the candidate's linked father Thomas Glasgow shares the subject's common given name (+2; Scottish grandparent-name pattern, Thomas in 86 public profiles; WikiTree: relationship status unmarked; weak alone)
  • 3 independent unlinked-profile clue types converge (+5): household chronology, locality, naming

Deductions and cautions: No indexed conflict; documentary proof still required

Automated fit20/100
Chronology-Only Fallback
Dates1710–?Generationat most 32 years age gapRecorded placesKilwinning, Ayrshire, Scotland · Kilwinning — AyrshireIndependent clue breadth · 4Age · Spouse · Spouse-Specific Child Window · Two-GenerationSame-spouse child windowMargaret (McEachin) GlasgowCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 43 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • known spouse Margaret (McEachin) Glasgow had a bounded, possibly plausible maternal age (31) at the subject's birth (+3)
  • bounded birth date gives a parent-child age gap of at most 32 years (+10; true age remains uncertain)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 32 years (+10; true age remains uncertain)
  • candidate's birth is 43 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • subject birth boundary overlaps children attributed to the same parental couple (1735–1755) (+3; other parent Margaret (McEachin) Glasgow)
  • known spouse Margaret (McEachin) Glasgow had a bounded, possibly plausible maternal age (31) at the subject's birth (+3)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Possible mothers5 leads

Automated fit10/100
Weak Lead
Dates1690–1760Generationat most 52 years age gapRecorded placesCounty Kildare, Ireland · County Dublin, Ireland · County Kildare — exact locality unprovedIndependent clue breadth · 6Age · Branch Reconvergence · Broad Geography · Household · Repeated Marriage Surnames · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • the two branches reconnect through shared descendants or descendant marriages (+6): Thomas Glasco
  • candidate's birth is 63 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • weak broad-area overlap: dublin (+1; not a locality match)

chronologically conflicting 52-year parent-child age gap (−8); candidate already has another child named Thomas Glasco (Glasco-144) without a documented death permitting name reuse (−4; check whether the child profiles duplicate or conflict)

Show complete scoring
  • candidate's birth is 63 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • weak broad-area overlap: dublin (+1; not a locality match)
  • same research cluster (+0; grouping is not kinship evidence)
  • subject's birth fits within the candidate's overall child-bearing span (1730–1753) (+3; children are not tied to one spouse)
  • uncommon spouse surnames recur across the subject and candidate branches: Duffy +8 (+8 total)
  • the two branches reconnect through shared descendants or descendant marriages (+6): Thomas Glasco

Deductions and cautions: chronologically conflicting 52-year parent-child age gap (−8); candidate already has another child named Thomas Glasco (Glasco-144) without a documented death permitting name reuse (−4; check whether the child profiles duplicate or conflict)

Automated fit9/100
Weak Lead
Dates1692–?Generationat most 50 years age gapRecorded placesHawick, Roxburghshire, Scotland · Hawick — RoxburghshireIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 61 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • less typical 50-year parent-child age gap (+2)
  • a candidate spouse matches the first dated son Thomas Glasco, the expected father position (+3; Thomas in 86 profiles)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Show complete scoring
  • less typical 50-year parent-child age gap (+2)
  • candidate's birth is 61 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • a candidate spouse matches the first dated son Thomas Glasco, the expected father position (+3; Thomas in 86 profiles)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Show 3 lower-scoring possible mothers
Automated fit3/100
Weak Lead
Dates1692–?Generationnominally 50 years; true gap uncertain age gapRecorded placesLinlithgowshire / West Lothian — exact locality unprovedIndependent clue breadth · 3Age · Sex-Aware Ordered Naming · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 61 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • less typical 50-year parent-child age gap (+2)
  • a candidate spouse matches the first dated son Thomas Glasco, the expected father position (+3; Thomas in 86 profiles)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction); subject lies more than 20 years from the candidate's known child-bearing period (−6; children may be missing)

Show complete scoring
  • less typical 50-year parent-child age gap (+2)
  • candidate's birth is 61 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • a candidate spouse matches the first dated son Thomas Glasco, the expected father position (+3; Thomas in 86 profiles)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction); subject lies more than 20 years from the candidate's known child-bearing period (−6; children may be missing)

Automated fit17/100
Chronology-Only Fallback
Dates1711–1786Generationat most 31 years age gapRecorded placesCounty Antrim — exact locality unprovedIndependent clue breadth · 3Age · Household · Two-GenerationCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 42 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 31 years (+10; true age remains uncertain)
  • same research cluster (+0; grouping is not kinship evidence)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 31 years (+10; true age remains uncertain)
  • candidate's birth is 42 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • same research cluster (+0; grouping is not kinship evidence)
  • subject's birth fits within the candidate's overall child-bearing span (1731–1748) (+3; children are not tied to one spouse)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Automated fit17/100
Chronology-Only Fallback
Dates1711–?Generationat most 31 years age gapRecorded placesKilmarnock, Ayrshire, Scotland · Ayrshire — exact locality unprovedIndependent clue breadth · 3Age · Spouse-Specific Child Window · Two-GenerationSame-spouse child windowHugh GlasgowCurrent relationshipNot currently linked as parent
Strongest signals
  • candidate's birth is 42 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • bounded birth date gives a parent-child age gap of at most 31 years (+10; true age remains uncertain)
  • subject birth boundary overlaps children attributed to the same parental couple (1735–1755) (+3; other parent Hugh Glasgow)

locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

Show complete scoring
  • bounded birth date gives a parent-child age gap of at most 31 years (+10; true age remains uncertain)
  • candidate's birth is 42 years before the subject's earliest dated child (1753), a compatible grandparent-generation interval (+4)
  • subject birth boundary overlaps children attributed to the same parental couple (1735–1755) (+3; other parent Hugh Glasgow)

Deductions and cautions: locality comparison is unavailable because one or both profiles lack adequate place data (no deduction)

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

Thomas GlasgowGlasgow-1413

Automated fit43/100
Similar Person
Dates1744–?PlacesScotlandParent 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

Thomas GlasgowGlasgow-1382

Automated fit38/100
Similar Person
Dates1746–1851PlacesLivingston, Linlithgowshire, ScotlandParent comparisonNo shared parent is indexed
Why it may fit
  • same first and last name (+18)
  • birth years within 4 (+18)
  • child given-name pattern overlaps: Thomas

No indexed conflict

Full comparison detail
  • same first and last name (+18)
  • birth years within 4 (+18)
  • child given-name pattern overlaps: Thomas

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

Life and record timelineChronological mapped occurrences and their underlying sources.1 record
b. 1742

Kin-inferred from child Thomas Glasco’s birthplace: Dublin

Dublin

One-Tree export profile fields are search leads, not sources; relationships are shown only where the export supplies parent links. This map placement is an estimate from kin and is not a directly recorded location for this person.

Kin-inferred One-Tree profile leadunknown
Source and mapping detail

WikiTree profile export for Glasco-173

No sufficiently specific citation match found.

Precision: Kin-inferred relationship locality

Evidence assessmentWhat is supported, uncertain or disputed in the current case model.2 claims
1Tree Only
1Unknown

Documented or strongly supported

No claims in this category have been formally assessed.

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.

Sources and provenanceStructured citations and source-quality classifications.2 sources

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

  1. unknown Baptism record for SARAH GLASCO on 10 August 1760
  2. tree_only WikiTree profile export for Glasco-173
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 2026-08-30

Machine-readable dossier

WikiTree biography, citations and relationship snapshot

Glasco-173 was captured 2026-08-24T09:08:44+00:00; WikiTree profile revision 2026-08-05.

Immediate relationship snapshot

RelationshipPersonWikiTree IDDates and places returned
ChildrenMonsieur Thomas GlascoGlasco-1441753-00-00 · Dublin · 0000-00-00

Record-bearing passages

  • Biography Thomas was born before 1742. Sources

    • Baptism record for SARAH GLASCO on 10 August 1760 Area - DUBLIN (RC), Parish/Church/Congregation - ST. MICHAN « Back to results Name: Sarah Glasco Address: Father: Thomas Glasco Mother: Catherine Further details in the record Child Denomination: Sponsor 1: Michael Follan Sponsor 2: Mary Flannegan Priest: About the record Book Number: 1 Page: 156 Entry Number: 6620 Record Identifier: DU-RC-BA-372529 The church register page containing this record has not yet been imaged on this site. However, the National Library of Ireland has digitised microfilm copies of Parish registers.

Profile source citations

  1. Baptism record for SARAH GLASCO on 10 August 1760
Full captured biography text
Biography
Thomas was born before 1742. 
Sources
* Baptism record for SARAH GLASCO on 10 August 1760
Area - DUBLIN (RC), Parish/Church/Congregation - ST. MICHAN « Back to results
Name: Sarah Glasco
Address: 
Father: Thomas Glasco
Mother: Catherine
Further details in the record
Child Denomination: 
Sponsor 1: Michael Follan
Sponsor 2: Mary Flannegan
Priest: 
About the record
Book Number: 1
Page: 156
Entry Number: 6620
Record Identifier: DU-RC-BA-372529
The church register page containing this record has not yet been imaged on this site. However, the National Library of Ireland has digitised microfilm copies of Parish registers.
Raw WikiTree biography markup
== Biography ==

Thomas was born before 1742. 
== Sources ==
<references />
* Baptism record for SARAH GLASCO on 10 August 1760
Area - DUBLIN (RC), Parish/Church/Congregation - ST. MICHAN « Back to results
Name: 	Sarah Glasco
Address: 	
Father: 	Thomas Glasco
Mother: 	Catherine
Further details in the record
Child Denomination: 	
Sponsor 1: 	Michael Follan
Sponsor 2: 	Mary Flannegan
Priest: 	
About the record
Book Number: 	1
Page: 	156
Entry Number: 	6620
Record Identifier: 	DU-RC-BA-372529
The church register page containing this record has not yet been imaged on this site. However, the National Library of Ireland has digitised microfilm copies of Parish registers.