MF
Mary Foster — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Blair-County, Pennsylvania
Our Model Tree links this Mary Foster across the 1920, 1930 and 1940 US Censuses in Blair-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 6-person household.
Age 54
b. ~1886
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Blair-County, Pennsylvania |
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Altoona City |
| 1935 Residence (County) | Blair |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Altoona City |
| Est. Birth Year | ~1886 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Martin Foster | Head | — | 53 | ~1887 |
| William Foster | Son | — | 16 | ~1924 |
| Elwood Foster | Son | — | 22 | ~1918 |
| Wilbur Foster | Son | — | 17 | ~1923 |
| Albert Foster | Son | — | 15 | ~1925 |
| Mary Foster | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Blair, Pennsylvania
Spouse, age 34
Blair, Pennsylvania · implied b. ~1886 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Blair, Pennsylvania
Other, age 44
Blair, Pennsylvania · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Blair-County, Pennsylvania
Spouse, age 54
Blair-County, Pennsylvania · implied b. ~1886 — 6 household members
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Altoona City |
| 1935 Residence (County) | Blair |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | 8 |
| 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 Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Foster
Spouse · 1940 · age 54 · b. ~1886 · 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 — Blair-County, Pennsylvania
Open full size
1940 US Federal Census — Blair-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03439-00162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Cook | 25 | Wife | — | Pennsylvania |
| 42 | Paul Cook | 10 | Son | — | Pennsylvania |
| 43 | Janice Cook | 8 | Daughter | — | Pennsylvania |
| 44 | Gerald Cook | 7 | Son | — | Pennsylvania |
| 45 | Joyce Cook | 3 | Daughter | — | Pennsylvania |
| 46 | Orvil B. Jeffreys | 56 | Head | — | Pennsylvania |
| 47 | Elva Jeffreys | 56 | Wife | — | Pennsylvania |
| 48 | Orvil C. Jeffreys | 23 | Son | Laborer | Pennsylvania |
| 49 | Mary Davis | 27 | Daughter | — | Ohio |
| 50 | John Davis | 2 | Grandson | — | Pennsylvania |
| 51 | Jay Davis | 1 | Grandson | — | Pennsylvania |
| 52 | Theda Clark | 29 | Daughter | — | Pennsylvania |
| 53 | John Clark | 30 | Son-in-law | Brakeman | Pennsylvania |
| 54 | Luther Angerle|Angerli | 20 | Head | Laborer | Pennsylvania |
| 55 | Jean Angerle|Angerli | 19 | Wife | — | Pennsylvania |
| 57 | Clayton Ross | 54 | Head | Car Inspector | Pennsylvania |
| 58 | Amy Ross | 51 | Wife | — | Pennsylvania |
| 59 | Thelma Ross | 27 | Daughter | Teacher | Ohio |
| 60 | Audrey Ross | 22 | Daughter | — | Pennsylvania |
| 61 | Martin Foster | 53 | Head | Car Inspector | Pennsylvania |
| 62 | Mary Foster THIS PERSON | 54 | Wife | — | Pennsylvania |
| 63 | Elwood Foster | 22 | Son | Laborer | Pennsylvania |
| 64 | Wilbur Foster | 17 | Son | — | Pennsylvania |
| 65 | William Foster | 16 | Son | — | Pennsylvania |
| 66 | Albert Foster | 15 | Son | — | Pennsylvania |
| 67 | Charles Toomey | 76 | Head | — | Pennsylvania |
| 68 | Helen Toomey | 46 | Wife | — | New York |
| 69 | Helen L. Toomey | 12 | Daughter | — | Pennsylvania |
| 70 | Ralph Miller | 23 | Head | Apprentice | Pennsylvania |
| 71 | Wilda Miller | 20 | Wife | — | Pennsylvania |
| 72 | Earl Smith | 56 | Head | — | Pennsylvania |
| 73 | Mame Smith | 53 | Wife | — | Pennsylvania |
| 74 | Adelaide Nelson | 31 | Daughter | — | Pennsylvania |
| 75 | Robert Nelson | 31 | Son-in-law | Janitor | Pennsylvania |
| 76 | Janet Nelson | 9 | Granddaughter | — | Pennsylvania |
| 77 | Earl Nelson | 6 | Grandson | — | Pennsylvania |
| 78 | Harry Springer | 52 | Head | Shop Inspector | Pennsylvania |
| 79 | Catherine Springer | 55 | Wife | — | Pennsylvania |
| 80 | Christine Springer | 26 | Daughter | Stenographer | 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)