MF
Mary Foster — 1930 US Census Record
Linked across censuses1930 United States Federal Census · King, Washington
Our Model Tree links this Mary Foster across the 1920, 1930 and 1940 US Censuses in King, Washington (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 4-person household.
Age 64
b. ~1866
Female
Head
Born: Scotland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | King, Washington |
| Surname | Foster |
| Given Name | Mary M |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1866 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Heinke | Daughter | — | 36 | ~1894 |
| Alice Foster | Daughter | — | 30 | ~1900 |
| Mary Foster | Head | — | 64 | ~1866 |
| Herbert Heinke | Other | — | 28 | ~1902 |
Census Appearances
1920
King, Washington
Head, age 55
King, Washington · implied b. ~1865 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Year of Immigration | 1886 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Scotland |
| Year of Naturalization | 1891 |
| Birthplace (normalized) | scotland |
1930
King, Washington
Head, age 64
King, Washington · implied b. ~1866 — 4 household members
| Surname | Foster |
| Given Name | Mary M |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
King-County, Washington
Other, age 75
King-County, Washington · implied b. ~1865 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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
Head · 1930 · age 64 · b. ~1866 · Washington
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — King, Washington
Open full size
1930 US Federal Census — King, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2494unit:0605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Max Jacobson | 51 | Head | Buyer | Russia |
| 2 | Bessie B Jacobson | 40 | Wife | — | West Virginia |
| 3 | J. Robert Jacobson | 16 | Son | — | Washington |
| 4 | Arlyne Logan | 26 | Niece | Salesman | West Virginia |
| 5 | Theodore J Anderson | 63 | Head | Carpenter | Sweden |
| 6 | Mary Anderson | 63 | Wife | — | Sweden |
| 7 | Henry W Hoppe | 38 | Head | Baker | England |
| 8 | Isabel Hoppe | 28 | Wife | — | Scotland |
| 9 | George H Hoppe | 4 | Son | — | Washington |
| 10 | Frederick J Hoppe | 2 | Son | — | Washington |
| 11 | Irene Mclaren | 36 | Head | Salesman | North Dakota |
| 12 | William E Mclaren | 16 | Son | Carrier | Canada-English |
| 13 | Kathleen M Mclaren | 11 | Daughter | — | Canada-English |
| 14 | Frank J Penning | 58 | Head | Salesman | Wisconsin |
| 15 | Lourena R Penning | 48 | Wife | — | New York |
| 16 | C. Clyde Garrett | 38 | Head | Salesman | Idaho |
| 17 | Adeline M Garrett | 32 | Wife | — | Montana |
| 18 | William A Garrett | 15 | Son | — | Idaho |
| 19 | Thomas W Garrett | 4 | Son | — | Washington |
| 20 | Sol C. K. Graves | 55 | Step-father | Engineer | Ohio |
| 21 | Susan Graves | 57 | Mother-in-law | — | Washington |
| 22 | Francis V Lance | 44 | Head | Owner | Minnesota |
| 23 | Bertha G Lance | 31 | Wife | — | Washington |
| 24 | Homer Lance | 21 | Son | — | Washington |
| 25 | Phyllis G Lance | 12 | Daughter | — | Oregon |
| 26 | Richard B Lance | 6 | Son | — | Washington |
| 27 | Clarence Barber | 24 | Brother-in-law | Collector | Washington |
| 28 | Mary M Foster THIS PERSON | 64 | Head | — | Scotland |
| 29 | Alice E Foster | 30 | Daughter | — | Washington |
| 30 | Herbert Heinke | 28 | Son-in-law | Engineer | Wisconsin |
| 31 | Mary M Heinke | 36 | Daughter | Clerical | Washington |
| 32 | Charles A Dahlquist | 44 | Head | Body Builder | Finland |
| 33 | Elsa M Dahlquist | 38 | Wife | — | Finland |
| 34 | Violet M Dahlquist | 9 | Daughter | — | Michigan |
| 35 | Helen M Dahlquist | 8 | Daughter | — | Washington |
| 36 | Hjalmer Josephson | 47 | Head | Tailor | Sweden |
| 37 | Signa Josephson | 42 | Wife | — | Sweden |
| 38 | Elmer Josephson | 13 | Son | — | Washington |
| 39 | Emil Carlson | 23 | Cousin | Floor Layer | Sweden |
| 40 | Sydney H Walker | 53 | Head | Com-Salesman | New York |
| 41 | Mae A Walker | 53 | Wife | — | Minnesota |
| 42 | Henry S Normile | 29 | Head | Driver | Washington |
| 43 | Irene Normile | 26 | Wife | — | Washington |
| 44 | Carol Normile | 4 | Daughter | — | Washington |
| 45 | Henry Normile | 2 | Son | — | Washington |
| 46 | Henry T Stork | 49 | Head | Bridge Foreman | Virginia |
| 47 | Mary E Stork | 49 | Wife | — | Maine |
| 48 | Septimus S Toper | 59 | Head | Barber | Illinois |
| 49 | Dolly Toper | 57 | Wife | — | Illinois |
| 50 | Ethelyn G Lawrence | 13 | Grand-daughter | — | Washington |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)