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 1910, 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Joseph & Joseph — first a son (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Warren |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | M |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Laborer |
| Industry | #6 |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Laborer |
| Township / Ward | New York City |
| Est. Birth Year | ~1900 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Warren | Daughter | — | 35 | ~1905 |
| Joseph Warren | Head | — | 70 | ~1870 |
| John Warren | Son | — | 40 | ~1900 |
| Joseph Warren | Son | — | 45 | ~1895 |
| Mary Warren | Spouse | — | 64 | ~1876 |
Census Appearances
1910
Kings, New …
Son, age 11
Kings, New York · implied b. ~1899 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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 |
1920
Kings, New …
Son, age 20
Kings, New York · implied b. ~1900 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Naturalization Status | Naturalized |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Truckdriver |
| Industry | Warehouse |
| Class of Worker | W |
| 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 30
Kings, New York · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Yes |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 40
Kings-County, New York · implied b. ~1900 — 5 household members
| Surname | Warren |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | M |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Laborer |
| Industry | #6 |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No |
| 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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Warren (~0.92 confidence) and father Joseph Warren (~0.92 confidence) and mother Mary Warren (~0.92 confidence) and mother Mary Warren (~0.92 confidence) and mother Mary Warren (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Warren
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Joseph Warren
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Mary Warren
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Mary Warren
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Warren
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Warren
Son · 1940 · age 40 · b. ~1900 · New York
★ You are viewing this record
Sibling
Joseph Warren
Sibling · 1940 · age 45
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Warren
Sibling · 1940 · age 35
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
40 people indexed on this census page (nara:1940:m-t0627-02562-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rose Marie Smith | 3 | Daughter | — | New York |
| 2 | Ralph Parile | 49 | Head | Salesman | Italy |
| 3 | Mary Parile | 39 | Wife | — | Italy |
| 4 | Joseph Parile | 17 | Son | — | Conn |
| 5 | Anthony Parile | 15 | Son | — | Conn |
| 6 | Jack Parile | 10 | Son | — | New York |
| 7 | Frances Parile | 7 | Daughter | — | New York |
| 8 | Louis Lomardi | 38 | Head | Driver | New York |
| 9 | Lena Lomardi | 32 | Wife | — | New York |
| 10 | Mary Lomardi | 13 | Daughter | — | New York |
| 11 | Louis Lomardi | 2 | Son | — | New York |
| 12 | Joseph Warren | 70 | Head | Boiler Maker | New York |
| 13 | Mary Warren | 64 | Wife | — | New York |
| 14 | Joseph Warren | 45 | Son | Helper | New York |
| 15 | John Warren THIS PERSON | 40 | Son | Laborer | New York |
| 16 | Elizabeth Warren | 35 | Daughter | Clerk | New York |
| 17 | Alfred Compitello | 29 | Head | Sweeper | New York |
| 18 | Della Compitello | 28 | Wife | — | New York |
| 19 | Mildred Compitello | 5 | Daughter | — | New York |
| 20 | Amodeo Valderon | 63 | Head | Presser | Italy |
| 21 | Anthony Valderon | 24 | Son | Baker | New York |
| 22 | Victor Valderon | 21 | Son | Counter Man | New York |
| 23 | Amodeo Valderon | 19 | Son | Counter Man | New York |
| 24 | Olga Valderon | 22 | Daughter | Seamstress | New York |
| 25 | Adina Valderon | 17 | Daughter | — | New York |
| 26 | Angelina Valderon | 14 | Daughter | — | New York |
| 27 | Mary A. Hunter | 60 | Head | Ticket Agent | New York |
| 28 | John Valenti | 31 | Head | Truck Driver | New York |
| 29 | Mary Valenti | 30 | Wife | — | New York |
| 30 | Rose Valenti | 6 | Daughter | — | New York |
| 31 | Gerard Dunderio | 51 | Head | Painter | New York |
| 32 | Rose Dunderio | 35 | Wife | — | New York |
| 33 | Carmella Dunderio | 18 | Daughter | New Worker | New York |
| 34 | Matthew Dunderio | 15 | Son | — | New York |
| 35 | Lawrence Fagan | 31 | Head | Manager | New York |
| 36 | Frances Fagan | 31 | Wife | — | New York |
| 37 | Anne Fagan | 5 | Daughter | — | New York |
| 38 | James Dunn | 16 | Head | — | New York |
| 39 | Margaret Dunn | 64 | Wife | — | New York |
| 40 | Robert Maring | 39 | Head | Cleaner | New York |
Pedigree Summary
John + 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)