MV
Mary Vance — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Vance across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1903), then head of a 8-person household.
Age 37
b. ~1903
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Vance |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | N. Braddock |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | N Braddock |
| Est. Birth Year | ~1903 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Vance | Spouse | — | 37 | ~1903 |
| Christine Vance | Daughter | — | 7 | ~1933 |
| Louise Vance | Daughter | — | 16 | ~1924 |
| George Vance | Son | — | 11 | ~1929 |
| Edward Vance | Son | — | 18 | ~1922 |
| John Vance | Son | — | 2 | ~1938 |
| John Vance | Head | — | 50 | ~1890 |
| Genevieve Vance | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Allegheny, Pennsylvania
Spouse, age 27
Allegheny, Pennsylvania · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Vance |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 17 |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 37
Allegheny-County, Pennsylvania · implied b. ~1903 — 8 household members
| Surname | Vance |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | N. Braddock |
| 1935 Residence (County) | Allegheny |
| Hours Worked | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Vance across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Vance
Spouse · 1940 · age 37 · b. ~1903 · 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
25 people indexed on this census page (nara:1940:m-t0627-03413-00193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Leach | 22 | Son | — | Pennsylvania |
| 42 | Thomas Leach | 20 | Son | Laborer | Pennsylvania |
| 43 | John Vance | 50 | Head | Watchman | Hungary |
| 44 | Mary Vance THIS PERSON | 37 | Wife | — | Pennsylvania |
| 45 | Edward Vance | 18 | Son | Laborer | Pennsylvania |
| 46 | Louise Vance | 16 | Daughter | — | Pennsylvania |
| 47 | George Vance | 11 | Son | — | Pennsylvania |
| 48 | Christine Vance | 7 | Daughter | — | Pennsylvania |
| 49 | Genevieve Vance | 5 | Daughter | — | Pennsylvania |
| 50 | John Vance | 2 | Son | — | Pennsylvania |
| 51 | Caleb Booker | 60 | Head | Mortar Mixer | Virginia |
| 52 | Lucy Booker | 48 | Wife | — | Virginia |
| 53 | William Booker | 28 | Son | Helper Outside | Pennsylvania |
| 54 | Alice Booker | 16 | Daughter | — | Pennsylvania |
| 55 | Della Booker | 13 | Daughter | — | Pennsylvania |
| 56 | John Booker | 12 | Son | — | Pennsylvania |
| 57 | Howard Booker | 10 | Son | — | Pennsylvania |
| 58 | Walter Booker | 9 | Son | — | Pennsylvania |
| 59 | Caleb Jr. Booker | 4 | Grandson | — | Pennsylvania |
| 60 | Atwell Sandidge | 27 | Head | Laborer | Virginia |
| 61 | Margaret Sandidge | 23 | Wife | — | Delaware |
| 62 | Margaret Sandidge | 1 | Daughter | — | Pennsylvania |
| 63 | James Jackson | 25 | Brother-in-law | Laborer | Alabama |
| 64 | Viola Jackson | 25 | Sister-in-law | — | Pennsylvania |
| 65 | Constance Jackson | 5 | Niece | — | Pennsylvania |
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)