JC
John Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Cooper across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Mary & Florence — first a spouse (b.~1904), then head of a 3-person household.
Age 36
b. ~1904
Male
Spouse
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Cooper |
| Given Name | John |
| Relationship to Head | Husband |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City Bklyn N.Y. |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Clerk |
| Industry | U.S. Steel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | New York City Bklyn Ny |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Lillian Cooper | Head | — | 37 | ~1903 |
| James Cooper | Son | — | 17 | ~1923 |
| John Cooper | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Kings, New …
Son, age 15
Kings, New York · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Checker |
| Industry | Hat mill |
| 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 26
Kings, New York · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Clerk |
| Industry | Undertaker |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Spouse, age 36
Kings-County, New York · implied b. ~1904 — 3 household members
| Surname | Cooper |
| Given Name | John |
| Relationship to Head | Husband |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City Bklyn N.Y. |
| 1935 Residence (County) | Kings |
| Occupation | Clerk |
| Industry | U.S. Steel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | No 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 Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Cooper (~0.92 confidence) and mother Florence Cooper (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Cooper
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Florence Cooper
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cooper
Spouse · 1940 · age 36 · b. ~1904 · New York
★ You are viewing this record
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
39 people indexed on this census page (nara:1940:m-t0627-02611-00287)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anne Sperling | 55 | Head | — | Austria |
| 2 | Morris Sperling | 30 | Son | Medical Dr | New York |
| 3 | Nathan Sperling | 25 | Son | Lawyer | New York |
| 4 | Elizabeth Carter | 65 | Head | — | Mass |
| 5 | Gladys Carter | 35 | Daughter | — | New York |
| 6 | June Carter | 38 | Daughter | Sales Lady | New York |
| 7 | James Carter | 7 | Grand-son | — | New York |
| 8 | Harold Davis | 43 | Head | Chauffeur | New York |
| 9 | Mary Davis | 38 | Wife | — | New York |
| 10 | Jean Davis | 17 | Daughter | — | New York |
| 11 | Lillian Cooper | 37 | Head | — | New York |
| 12 | John Cooper THIS PERSON | 36 | Husband | Clerk | New York |
| 13 | James Cooper | 17 | Son | — | New York |
| 14 | Nicholas Bozzi | 63 | Head | Barber | Italy |
| 15 | Nancy Bozzi | 55 | Wife | — | Italy |
| 16 | Vincent Bozzi | 30 | Son | Carpenter | New York |
| 17 | Catherine Bozzi | 27 | Daughter | Nurse | New York |
| 18 | Christina Bozzi | 25 | Daughter | Secretary | New York |
| 19 | Jimmy Colligan | 30 | Head | Clerk | New York |
| 20 | Christina Colligan | 26 | Wife | — | New York |
| 21 | Frank Rodgers | 40 | Head | Chauffeur | New York |
| 22 | Mary Rodgers | 38 | Wife | — | New York |
| 23 | Millicent Rodgers | 13 | Daughter | — | New York |
| 24 | Helen Rodgers | 5 | Son | — | New York |
| 25 | Mary Rodgers | 15 | Daughter | — | New York |
| 26 | James Adams | 47 | Head | Machinist | Scotland |
| 27 | Martha Adams | 40 | Wife | — | Scotland |
| 28 | John Adams | 19 | Son | Ship Clerk | Scotland |
| 29 | James Adams | 17 | Son | Errand Boy | Scotland |
| 30 | Samuel Adams | 15 | Son | — | Scotland |
| 31 | Mary Adams | 13 | Daughter | — | Scotland |
| 32 | Edward Adams | 10 | Son | — | Scotland |
| 33 | Pauline Ahrens | 70 | Head | — | Germany |
| 34 | Herbert Ravin | 37 | Head | Clerical | New York |
| 35 | Carl V. Ravin | 27 | Wife | Clerical | New York |
| 36 | Edward Ravin | 9 | Son | — | New York |
| 37 | Emma Lester | 62 | Mother-in-law | — | New York |
| 38 | A. H. Bommes | 41 | Head | Salesman | New York |
| 39 | Elsie H. Bommes | 36 | Wife | Stenog | New York |
Related Census Records
Pedigree Summary
John
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)