MC
Mary Collier — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Collier across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 9-person household.
Age 44
b. ~1896
Female
Spouse
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Collier |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Brackenridge Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | Brackenridge Borough |
| Est. Birth Year | ~1896 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Carrie Collier | Daughter | — | 22 | ~1918 |
| Charlotte Collier | Daughter | — | 6 | ~1934 |
| Jerry Collier | Son | — | 19 | ~1921 |
| Minnie Collier | Daughter | — | 20 | ~1920 |
| George Collier | Son | — | 9 | ~1931 |
| Mitchell Collier | Son | — | 17 | ~1923 |
| Juanita Collier | Daughter | — | 12 | ~1928 |
| Joseph Collier | Head | — | 55 | ~1885 |
| Mary Collier | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Allegheny, Pennsylvania
Spouse, age 33
Allegheny, Pennsylvania · implied b. ~1897 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collier |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Georgia |
| Age at First Marriage | 14 |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Can Read/Write | No |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Allegheny-County, Pennsylvania
Spouse, age 44
Allegheny-County, Pennsylvania · implied b. ~1896 — 9 household members
| Surname | Collier |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Brackenridge Borough |
| 1935 Residence (County) | Allegheny |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Collier across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Collier
Spouse · 1940 · age 44 · b. ~1896 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03398-00067)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert W. Martin | 11 | Son | — | New Kensington |
| 2 | Peter W. Martin | 11 | Son | — | New Kensington |
| 3 | Rachel L. Martin | 7 | Daughter | — | Brackenridge |
| 4 | Pauline L. Martin | 5 | Daughter | — | Brackenridge |
| 5 | John P. Martin | 1 | Son | — | Brackenridge |
| 6 | William M. Harris | 64 | Head | Alloy Loader | Georgia |
| 7 | Jessie B. Harris | 70 | Wife | — | Georgia |
| 8 | William Adams | 44 | Head | Laborer | Georgia |
| 9 | Clara Adams | 32 | Wife | — | Georgia |
| 10 | Annie Adams | 20 | Daughter | — | Georgia |
| 11 | Paula Adams | 17 | Daughter | — | Georgia |
| 12 | Oscar Adams | 14 | Son | — | Brackenridge |
| 13 | William Jr. Adams | 11 | Son | — | Brackenridge |
| 14 | Joseph Thrasher | 50 | Head | Laborer | Georgia |
| 15 | Herbert Foster | 24 | Head | Laborer | Georgia |
| 16 | Anna R. Foster | 20 | Wife | — | Georgia |
| 17 | Lester Foster | 0 | Son | — | Brackenridge |
| 18 | James Foster | 22 | Brother | — | Georgia |
| 19 | Benjamin Foster | 19 | Brother | Lumberman | Georgia |
| 20 | Joseph Collier | 55 | Head | Laborer | South Carolina |
| 21 | Mary Collier THIS PERSON | 44 | Wife | — | Georgia |
| 22 | Carrie M. Collier | 22 | Daughter | — | Georgia |
| 23 | Minnie L. Collier | 20 | Daughter | — | Georgia |
| 24 | Jerry L. Collier | 19 | Son | Lumberman | Georgia |
| 25 | Mitchell Collier | 17 | Son | Woodman | Georgia |
| 26 | Juanita Collier | 12 | Daughter | — | Brackenridge |
| 27 | George Collier | 9 | Son | — | Brackenridge |
| 28 | Charlotte Collier | 6 | Daughter | — | Brackenridge |
| 29 | Oscar Jr. Manley | 25 | Head | Laborer | Georgia |
| 30 | Mary Manley | 24 | Wife | — | South Carolina |
| 31 | Albert L. Manley | 5 | Son | — | Brackenridge |
| 32 | Marlene M. Manley | 3 | Daughter | — | Brackenridge |
| 33 | Clifford E. Manley | 2 | Son | — | Brackenridge |
| 34 | William Butler | 21 | Brother in law | Car Washer | South Carolina |
| 35 | Lucious Brown | 42 | Head | Laborer | Georgia |
| 36 | Cornelia Brown | 36 | Wife | — | Georgia |
| 37 | Edward Brown | 18 | Son | — | Freeport |
| 38 | Robert Brown | 16 | Son | — | Freeport |
| 39 | Samuel Brown | 14 | Son | — | Freeport |
| 40 | Rosa M. Brown | 9 | Daughter | — | Brackenridge |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)