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Mary Foster — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Walla-Walla-County, Washington
Our Model Tree links this Mary Foster across the 1920, 1930 and 1940 US Censuses in Walla-Walla-County, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Female
Spouse
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Walla-Walla-County, Washington |
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Walla Walla |
| 1935 Residence (County) | Walla Walla |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Walla Walla |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| Eleanor Foster | Daughter | — | 20 | ~1920 |
| Edward Foster | Head | — | 55 | ~1885 |
| Margaret Draper | Other | — | 80 | ~1860 |
| John Foster | Son | — | 27 | ~1913 |
| Edward Foster | Son | — | 23 | ~1917 |
| Mary Foster | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Walla Walla, …
Spouse, age 27
Walla Walla, Washington · implied b. ~1893 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Washington |
| Father's Birthplace | England |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Walla Walla, …
Spouse, age 42
Walla Walla, Washington · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 22 |
| Father's Birthplace | England |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Walla-Walla-County, Washington
Spouse, age 52
Walla-Walla-County, Washington · implied b. ~1888 — 6 household members
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Walla Walla |
| 1935 Residence (County) | Walla Walla |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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.
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This person
Anchor record
Mary Foster
Spouse · 1940 · age 52 · b. ~1888 · Washington
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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 — Walla-Walla-County, Washington
Open full size
1940 US Federal Census — Walla-Walla-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04367-00233)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Olive D Johnson | 44 | Head | Delivery Boy | Minnesota |
| 2 | Ellis Johnson | 24 | Son | Delivery Boy | Idaho |
| 3 | Delbert Johnson | 16 | Son | — | Washington |
| 4 | Edmund Powers | 14 | Cousin | — | Washington |
| 5 | Joanna Piffle | 50 | Head | — | Germany |
| 6 | Lorene Piffle | 16 | Daughter | — | Washington |
| 7 | Mary Piffle | 13 | Daughter | — | Washington |
| 8 | R. G. Strange | 33 | Head | Plant Labor | Montana |
| 9 | Olga Strange | 30 | Wife | — | Romania |
| 10 | Herman Strange | 9 | Son | — | Washington |
| 11 | Minnie Uhr | 53 | Head | 26 | Russia |
| 12 | Hamlin Lillian Uhr | 31 | Daughter | — | Washington |
| 13 | Ellen Mary Cook | 6 | Daughter | — | Oregon |
| 14 | Edward B Foster | 55 | Head | Electrician | Oregon |
| 15 | Mary Foster THIS PERSON | 52 | Wife | — | Washington |
| 16 | John Foster | 27 | Son | Salesman | Washington |
| 17 | Edward Jr Foster | 23 | Son | Gardner | Washington |
| 18 | Eleanor Foster | 20 | Daughter | Clerk | Washington |
| 19 | Margaret Draper | 80 | Mother | — | California |
| 20 | Dora A. D. Lund | 61 | Head | Laundress | Illinois |
| 21 | Louis Hoffman | 56 | Head | — | Wisconsin |
| 22 | Mary Hoffman | 49 | Wife | — | Bavaria |
| 23 | Roel Hoffman | 24 | Daughter | — | Washington |
| 24 | Roy Sloan | 32 | Head | Fire Man | Texas |
| 25 | Helen Sloan | 33 | Wife | Waitress | Washington |
| 26 | William Wilhelm | 67 | Head | — | Canada |
| 27 | Minnie Wilhelm | 55 | Wife | — | Oregon |
| 28 | Thomas Wilhelm | 16 | Son | — | Washington |
| 29 | Howard Artell | 30 | Head | Teamster | Washington |
| 30 | Marguerite Artell | 25 | Wife | — | Washington |
| 31 | Larry Artell | 3 | Son | — | Washington |
| 32 | Mary Denny | 25 | Head | Laundress | Scotland |
| 33 | Betty Denny | 3 | Daughter | — | Wyoming |
| 34 | Harold Allen | 48 | Head | — | Washington |
| 35 | Bessie Allen | 42 | Wife | Waitress | Oregon |
| 36 | Erwin Martinez | 19 | Stepson | Apprentice Carpenter | Washington |
| 37 | Philip Green | 69 | Head | — | Russia |
| 38 | Mary Green | 73 | Wife | — | Russia |
| 39 | Amelia Haines | 32 | Daughter | House Work | Nebraska |
| 40 | John Vradenburgh | 64 | Head | Laborer | Germany |
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)