RF
Richard Foster — 1940 US Census Record
Model Tree available1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Richard Foster across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed), with identified parents Claude & George — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Foster |
| Given Name | Richard E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Piedmont |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Piedmont |
| Est. Birth Year | ~1919 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Nancy Foster | Daughter | — | 14 | ~1926 |
| George Nickelson | Other | — | 30 | ~1910 |
| Emily Coke | Other | — | 37 | ~1903 |
| Richard Foster | Son | — | 21 | ~1919 |
| Elizabeth Foster | Daughter | — | 22 | ~1918 |
| Caleb Johnson | Other | — | 37 | ~1903 |
| Nellie Foster | Head | — | 57 | ~1883 |
Census Appearances
1920
Alameda, California
Son, age 1
Alameda, California · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Alameda, California
Son, age 11
Alameda, California · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Richard S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Son, age 21
Alameda-County, California · implied b. ~1919 — 7 household members
| Surname | Foster |
| Given Name | Richard E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Piedmont |
| 1935 Residence (County) | Alameda |
| Class of Worker | 0 |
| Highest Grade | C-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 Richard Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Claude Foster (~0.92 confidence) and father George Foster (~0.92 confidence) and mother Nellie Foster (~0.92 confidence) and mother Nellie Foster (~0.92 confidence) and mother Sallie Foster (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Claude Foster
b. ~1883
Source father
● Household
· direct · ~0.92
Father
George Foster
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Nellie Foster
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Nellie Foster
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Sallie Foster
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Foster
Son · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Sibling
Nancy Foster
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Foster
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00191-00189)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Lundy Wintell | 70 | Head | Music Teacher | England |
| 42 | Alma Frieda Wintell | 37 | Wife | Asst. Librarian | Wisconsin |
| 43 | William Victor Wintell | 27 | Son | Artist | South Africa |
| 44 | Sylvia Elsie Wintell | 4 | Daughter | — | California |
| 45 | Winford W. Saint | 59 | Head | Merchandise Broker | Indiana |
| 46 | Elsie D. Saint | 56 | Wife | — | Canada |
| 47 | Winford F. Saint | 33 | Son | Merchandise Broker | California |
| 48 | Alice M. Saint | 31 | Daughter | Teacher | California |
| 49 | Leslie W. Masters | 41 | Head | Statistician | Colorado |
| 50 | Helen Mary Masters | 32 | Wife | — | Washington |
| 51 | Clara Masters | 61 | Mother | — | Kansas |
| 52 | Lucy A. Leete | 70 | Head | — | Nevada |
| 53 | Lucy Heaton Leete | 44 | Daughter | — | Nevada |
| 54 | Thomas H. Smith | 56 | Head | Advertising | Nevada |
| 55 | Helen L. Smith | 53 | Wife | — | Ohio |
| 56 | Raymond Pyle | 34 | Servant | Domestic | Philippines |
| 57 | Nellie E. Foster | 57 | Head | — | Pennsylvania |
| 58 | Elizabeth L. Foster | 22 | Daughter | — | California |
| 59 | Richard E. Foster THIS PERSON | 21 | Son | — | California |
| 60 | Nancy Lee Foster | 14 | Daughter | — | California |
| 61 | Caleb E. Johnson | 37 | Brother | Accountant | California |
| 62 | George G. Nickelson | 30 | Roomer | Clerk | Oregon |
| 63 | Emily J. Coke | 37 | Roomer | Typist | California |
| 64 | Emil L. Mclowery | 68 | Head | — | California |
| 65 | Louise J. Mclowery | 35 | Daughter | Attorney | California |
| 66 | Egmont R. Schmael | 38 | Head | Med. Doctor | Germany |
| 67 | Margarita Schmael | 30 | Wife | — | Germany |
| 68 | Robert W. Schmael | 6 | Son | — | Hong Kong |
| 69 | Marion F. Schmael | 3 | Daughter | — | California |
| 70 | Ludwig Kochman | 72 | Father-in-law | — | Germany |
| 71 | Katharina Kochman | 60 | Mother-in-law | — | Germany |
| 72 | Hugh D. Evans | 65 | Head | Ins. Agent | Iowa |
| 73 | Maud R. Evans | 61 | Wife | — | Iowa |
| 74 | John Mitchell | 23 | Head | Telephone Repairman | Nevada |
| 75 | Lorraine Mitchell | 18 | Wife | — | California |
| 76 | Donald D. Bartells | 25 | Roomer | Repairman | Washington |
| 77 | Helene Bartells | 22 | Roomer | — | Texas |
| 78 | Joseph D. Donohue | 53 | Head | Merchant | California |
| 79 | Idella Donohue | 54 | Wife | — | Illinois |
| 80 | Frances F. Donohue | 18 | Daughter | — | California |
Pedigree Summary
Richard + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)