JW
John Warren — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Warren across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Edward & Anna — first a son (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Warren |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Bor of Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Dentist |
| Industry | Private Practice |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Dentist |
| Township / Ward | Bor Of Brooklyn |
| Est. Birth Year | ~1911 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Virginia Warren | Daughter | — | 21 | ~1919 |
| Anna Warren | Head | — | 58 | ~1882 |
| John Warren | Son | — | 29 | ~1911 |
Census Appearances
1920
Kings, New …
Son, age 9
Kings, New York · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 19
Kings, New York · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 29
Kings-County, New York · implied b. ~1911 — 3 household members
| Surname | Warren |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Bor of Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | Dentist |
| Industry | Private Practice |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Warren across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Warren (~0.92 confidence) and mother Anna Warren (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Warren
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Anna Warren
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Warren
Son · 1940 · age 29 · b. ~1911 · New York
★ You are viewing this record
Sibling
Virginia Warren
Sibling · 1940 · age 21
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
34 people indexed on this census page (nara:1940:m-t0627-02615-00712)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frederick Jr Court | 13 | Son | — | New York |
| 2 | Ruth Court | 10 | Daughter | — | New York |
| 3 | Thomas Court | 5 | Son | — | New York |
| 4 | Elizabeth Court | 1 | Daughter | — | New York |
| 5 | Amanda Watters | 58 | Mother in law | — | Sweden |
| 6 | Seven Johnson | 27 | Brother in law | Painter | Sweden |
| 7 | Charles Lumagren | 23 | Brother | Handy Man | New York |
| 8 | Fred Fletcher | 47 | Head | Salesman | New York |
| 9 | Minnie Fletcher | 44 | Wife | — | New York |
| 10 | Margaret Fletcher | 18 | Daughter | — | New York |
| 11 | Dorothy Fletcher | 15 | Daughter | — | New York |
| 12 | Arthur Abrams | 33 | Head | Proprietor | New York |
| 13 | Gertrude Abrams | 31 | Wife | — | New York |
| 14 | Lucille Abrams | 5 | Daughter | — | New York |
| 15 | Alf Brakke | 52 | Head | Iron Worker | Norway |
| 16 | Ragna Brakke | 51 | Wife | — | Norway |
| 17 | Harold Brakke | 25 | Son | Machinist | Minnesota |
| 18 | Marion Brakke | 19 | Son | Helper | Minnesota |
| 19 | William Danielson | 36 | Head | Collector | New York |
| 20 | Helen Danielson | 43 | Wife | Stenographer | New York |
| 21 | Cecelia Kallstrom | 63 | Mother in law | — | Finland |
| 22 | Elizabeth Dietrich | 67 | Head | — | New York |
| 23 | Ida Reinfelder | 62 | Head | — | New Jersey |
| 24 | John Sololen | 59 | Head | Operator | New York |
| 25 | Belle Sololen | 52 | Wife | — | New York |
| 26 | Isabelle Sololen | 29 | Daughter | Cashier | New York |
| 27 | John Sololen | 26 | Son | Printer | New York |
| 28 | Bertram Sololen | 26 | Daughter | Bookkeeper | New York |
| 29 | Margaret Sololen | 26 | Daughter | Clerk | New York |
| 30 | Mary Sololen | 20 | Daughter | New Worker | New York |
| 31 | Helen Sololen | 18 | Daughter | New Worker | New York |
| 32 | Anna Warren | 58 | Head | — | New York |
| 33 | John E Warren THIS PERSON | 29 | Son | Dentist | New York |
| 34 | Virginia Warren | 21 | Daughter | Stenographer | New York |
Pedigree Summary
John + 1 sibling
Gen 1 · 2 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)