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John Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Sullivan across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Sullivan |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Law Clerk |
| Industry | Law |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Law Clerk |
| Township / Ward | New York City |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Bernice Sullivan | Daughter | — | 5 | ~1935 |
| John Sullivan | Head | — | 37 | ~1903 |
| Francis Sullivan | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Kings, New …
Son, age 16
Kings, New York · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | John Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | messenger |
| Industry | wholesale meats |
| 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 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bookkeeper |
| Industry | Meat House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 37
Kings-County, New York · implied b. ~1903 — 3 household members
| Surname | Sullivan |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Law Clerk |
| Industry | Law |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 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 Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and mother Lora Sullivan (~0.92 confidence) and mother Anna Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Sullivan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lora Sullivan
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Anna Sullivan
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Sullivan
Head · 1940 · age 37 · b. ~1903 · 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
40 people indexed on this census page (nara:1940:m-t0627-02567-00010)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kathleen O'Connor | 20 | Daughter | Stenographer | New York |
| 42 | Margaret O'Connor | 18 | Daughter | — | New York |
| 43 | Norman Mac Dougall | 33 | Head | Clerk | New York |
| 44 | Elizabeth Mac Dougall | 27 | Wife | — | New York |
| 45 | Barbara Mac Dougall | 1 | Daughter | — | New York |
| 46 | Frank Corcoran | 30 | Head | Drafting | New York |
| 47 | Mary Corcoran | 28 | Wife | — | New York |
| 48 | Frank Jr. Corcoran | 2 | Son | — | New York |
| 49 | Leonard Barbagall | 24 | Head | Printer | New York |
| 50 | Katharine Barbagall | 23 | Wife | — | New York |
| 51 | George Essling | 57 | Head | Elevator Opr | New York |
| 52 | Alice Essling | 62 | Wife | — | New York |
| 53 | Agnes Ferguson | 66 | Head | — | New York |
| 54 | Louis Mahoney | 62 | Brother | — | New York |
| 55 | Peter Connell | 71 | Head | — | Scotland |
| 56 | Margaret Connell | 67 | Wife | — | New York |
| 57 | Agnes Connell | 32 | Daughter | Typist | New York |
| 58 | Anna Connell | 30 | Daughter | Stenographer | New York |
| 59 | John Renny | 39 | Head | Clothing Shop | New York |
| 60 | Helen Renny | 39 | Wife | — | Pennsylvania |
| 61 | Emil Guaglianone | 32 | Head | Mechanic | Italy |
| 62 | Sue Guaglianone | 29 | Wife | — | New York |
| 63 | Mallie Balney | 43 | Head | Iron Worker | Tennessee |
| 64 | Charlotte Balney | 45 | Wife | — | Tennessee |
| 65 | Blanche Badeker | 63 | Sister-in-law | — | New Jersey |
| 66 | Paul Laski | 46 | Head | — | Austria |
| 67 | Tekla Laski | 44 | Wife | Cook | Austria |
| 68 | John Stojowski | 50 | Lodger | Salesman | Austria |
| 69 | Marguerite Maleha | 46 | Head | Bookkeeper | New York |
| 70 | Harry Maleha | 23 | Son | Clerk | New York |
| 71 | Elisa Weiss | 69 | Head | — | Germany |
| 72 | Evelyn Weiss | 23 | Granddaughter | Stenographer | New York |
| 73 | Dennis O'Shea | 27 | Head | Chemical Engr | New Hampshire |
| 74 | Elizabeth O'Shea | 22 | Wife | Stenographer | New Hampshire |
| 75 | Patsy Bonaccorsi | 27 | Head | Painter | Massachusetts |
| 76 | Ada Bonaccorsi | 24 | Wife | — | Italy |
| 77 | Marilyn Bonaccorsi | 5 | Daughter | — | New York |
| 78 | John Jr. Sullivan THIS PERSON | 37 | Head | Law Clerk | New York |
| 79 | Francis M. Sullivan | 28 | Wife | — | New York |
| 80 | Bernice J. Sullivan | 5 | Daughter | — | New York |
Pedigree Summary
John
Gen 1 · 4 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)