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Robert Foster — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Robert Foster across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Foster |
| Given Name | Robert A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | H 3 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Carpenter |
| Township / Ward | San Francisco City |
| 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Winifred Foster | Daughter | — | 29 | ~1911 |
| Robert Foster | Head | — | 52 | ~1888 |
| George Foster | Son | — | 16 | ~1924 |
| Robert Foster | Son | — | 27 | ~1913 |
| Wesley Foster | Son | — | 20 | ~1920 |
| Matilda Foster | Spouse | — | 52 | ~1888 |
Census Appearances
1920
San Francisco, …
Head, age 31
San Francisco, California · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Robert A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Missouri |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Head, age 41
San Francisco, California · implied b. ~1889 — 49 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Robert A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Missouri |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 52
San-Francisco-County, California · implied b. ~1888 — 6 household members
| Surname | Foster |
| Given Name | Robert A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Occupation | Carpenter |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | H 3 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Robert Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Foster
Head · 1940 · age 52 · b. ~1888 · California
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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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00313-00653)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Faire Barry | 24 | Daughter | Teacher | California |
| 2 | Phyllis Barry | 22 | Daughter | — | California |
| 3 | Louise Barry | 20 | Daughter | — | California |
| 4 | Joseph E. Duret | 52 | Head | Carpenter | Canada-French |
| 5 | Schmader D. Duret | 51 | Sister | — | Canada-French |
| 6 | Albertine Duret | 50 | Sister | — | Canada-French |
| 7 | Alfred J. De Bonne | 54 | Head | Chef | France |
| 8 | Agnes M. De Bonne | 53 | Wife | — | Norway |
| 9 | Benito Giordacera | 38 | Head | Waiter | Mexico |
| 10 | Fini Giordacera | 24 | Wife | Finisher | Ohio |
| 11 | Dolores Giordacera | 2 | Daughter | — | California |
| 12 | Lucretia Russ | 21 | Sister-in-law | Presser | Ohio |
| 13 | Gerrard Simon | 51 | Head | Printer | New York |
| 14 | Henrietta Simon | 45 | Wife | — | Ireland |
| 15 | Sol Simon | 18 | Son | — | California |
| 17 | Gustave Bergner | 69 | Head | Broker | Germany |
| 18 | Dorothy Bergner | 66 | Wife | — | California |
| 19 | Eugene Murray | 32 | Head | Clerk | California |
| 20 | Cynthia Murray | 33 | Wife | — | California |
| 21 | Fred C. Johnson | 62 | Head | — | California |
| 22 | Maud R. Johnson | 70 | Wife | — | Massachusetts |
| 23 | Robert A. Foster THIS PERSON | 52 | Head | Carpenter | California |
| 24 | Matilda Foster | 52 | Wife | — | California |
| 25 | Winifred Foster | 29 | Daughter | Clerk | California |
| 26 | Robert M. Foster | 27 | Son | Salesman | California |
| 27 | Wesley Foster | 20 | Son | — | California |
| 28 | George Foster | 16 | Son | — | California |
| 29 | Elizabeth Davis | 53 | Head | — | New York |
| 30 | Richard H. Schreiber | 55 | Lodger | Broker | Massachusetts |
| 31 | Mit Gray | 70 | Head | — | New York |
| 32 | Mona Gray | 42 | Daughter | — | California |
| 33 | Sinclair Byron | 43 | Son-in-law | Laborer | Iowa |
| 34 | John Byron | 21 | Grandson | Laborer | California |
| 35 | Rolande Byron | 18 | Grandson | — | California |
| 36 | William Byron | 15 | Grandson | — | California |
| 37 | Charles J. Erickson | 64 | Head | — | California |
| 38 | Hulda Erickson | 65 | Wife | — | Sweden |
| 39 | Alburns Ferguson | 43 | Head | Janitor | Denmark |
| 40 | Myrtle Ferguson | 43 | Wife | — | California |
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)