JF
John Foster — 1940 US Census Record
Model Tree available1940 United States Federal Census · Westchester-County, New York
Our Model Tree links this John Foster across the 1920, 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed), with identified parents Charles & Lillian — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Westchester-County, New York |
| Surname | Foster |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Chappaqua |
| 1935 Residence (County) | Westchester |
| Additional Details | |
| Occupation | Check Proofer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1640 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Check Proofer |
| Township / Ward | Chappaqua |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Lillian Foster | Daughter | — | 27 | ~1913 |
| Lillian Foster | Head | — | 52 | ~1888 |
| Edward Hayden | Other | — | 34 | ~1906 |
| John Foster | Son | — | 23 | ~1917 |
Census Appearances
1920
Westchester, New …
Son, age 3
Westchester, New York · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Westchester, New …
Son, age 12
Westchester, New York · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Westchester-County, New …
Son, age 23
Westchester-County, New York · implied b. ~1917 — 4 household members
| Surname | Foster |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Chappaqua |
| 1935 Residence (County) | Westchester |
| Occupation | Check Proofer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1640 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 John Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Foster (~0.92 confidence) and mother Lillian Foster (~0.92 confidence) and mother Lillian Foster (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Foster
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Lillian Foster
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Lillian Foster
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Foster
Son · 1940 · age 23 · b. ~1917 · New York
★ You are viewing this record
Sibling
Lillian Foster
Sibling · 1940 · age 27
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 — Westchester-County, New York
Open full size
1940 US Federal Census — Westchester-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02808-00344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph M. Brooks | 49 | Head | — | Florida |
| 2 | Janet Brooks | 19 | Daughter | — | New York |
| 3 | Joan Brooks | 16 | Daughter | — | New York |
| 4 | Josephine Brooks | 13 | Daughter | — | New York |
| 5 | Dorothea Cherry | 19 | Servant | Maid | Virginia |
| 6 | Maud S. Von Hengerke | 68 | Head | — | New York |
| 7 | Milam Sails Von Hengerke | None | — | — | — |
| 8 | Von Hengerke | None | — | — | — |
| 9 | Johnson | None | — | — | — |
| 10 | Johnson | None | — | — | — |
| 11 | Jake Peck Porter | 57 | Head | Laborer Gardener | Illinois |
| 12 | Lawrence B. Sr. Grant | 43 | Head | Driver | New Jersey |
| 13 | Anna Mayo Grant | 36 | Wife | Bookkeeper | Georgia |
| 14 | Robert Grant | 16 | Son | — | New York |
| 15 | Lillian Foster | 52 | Head | Janitor | New York |
| 16 | Lillian Foster | 27 | Daughter | Maid | New York |
| 17 | John Foster THIS PERSON | 23 | Son | Check Proofer | New York |
| 18 | Edward Hayden | 34 | Lodger | Manager | Free State |
| 19 | Walter J. Sr. Foster | 57 | Head | Gardener | New York |
| 20 | Winifred Foster | 62 | Wife | — | Free State |
| 21 | Eleanor Foster | 28 | Daughter | Clerk | New York |
| 22 | Walter J. Jr. Foster | 17 | Son | Chauffeur | New York |
| 23 | Hazel Lowry | 42 | Head | Secretary | Alabama |
| 24 | John Connor | 80 | Head | — | Northern Ireland |
| 25 | Jennie Connor | 65 | Wife | — | New York |
| 26 | Adolph C. Waneheck | 34 | Head | Clerk | New York |
| 27 | Eleanor Waneheck | 32 | Wife | — | New York |
| 28 | Charles J. Waneheck | 5 | Son | — | New York |
| 29 | Diane E. Waneheck | 0 | Daughter | — | New York |
| 30 | William W. Dean | 82 | Head | — | New York |
| 31 | Bailey Dean | 52 | Daughter | — | New York |
| 32 | Bridget Melin | 70 | Head | — | Free State |
| 33 | Lawrence J. Melin | 37 | Son | Vice President | New York |
| 34 | Vera Melin | 32 | Daughter | Clerk | New York |
| 35 | William Melin | 29 | Son | Clerk | New York |
| 36 | Frank Muscriello | 21 | Lodger | Attendant | New York |
| 37 | Herman E. M.D. Schorr | 50 | Head | Physician Surgeon | New York |
| 38 | Beatrice N. Schorr | 33 | Wife | Dental Assistant | Illinois |
| 39 | Lawrence Schorr | 13 | Son | — | California |
| 40 | Robert Schorr | 11 | Son | — | California |
Pedigree Summary
John + 1 sibling
Gen 1 · 3 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)