JH
John Hart — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Westchester-County, New York
Our Model Tree links this John Hart across the 1920, 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 4-person household.
Age 58
b. ~1882
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Westchester-County, New York |
| Surname | Hart |
| Given Name | John J. @ |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | New Rochelle |
| 1935 Residence (County) | Westchester |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | New Rochelle |
| Est. Birth Year | ~1882 |
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 |
|---|---|---|---|---|
| John Hart | Head | — | 58 | ~1882 |
| William Hart | Other | — | 4 | ~1936 |
| William Hart | Son | — | 27 | ~1913 |
| Mary Hart | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Westchester, New …
Head, age 38
Westchester, New York · implied b. ~1882 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Auto Driver |
| Industry | American Express |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | massachusetts |
1930
Westchester, New …
Head, age 48
Westchester, New York · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 31 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Chauffeur |
| Industry | Building Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Westchester-County, New …
Head, age 58
Westchester-County, New York · implied b. ~1882 — 4 household members
| Surname | Hart |
| Given Name | John J. @ |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | New Rochelle |
| 1935 Residence (County) | Westchester |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Hart across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Hart
Head · 1940 · age 58 · b. ~1882 · 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 — 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-t0627-02810-00346)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patsy Perrotti | 25 | Son | Automobile Mechanic | New York |
| 2 | Jennie Perrotti | 15 | Daughter | — | New York |
| 3 | Thomas @ Wilson | 59 | Head | — | Scotland |
| 4 | Catherine Wilson | 60 | Wife | — | Scotland |
| 5 | Thomas Jr Wilson | 33 | Son | Carpet Layer | Scotland |
| 6 | George Wilson | 26 | Son | Laundry Man | New York |
| 7 | Andrew Wilson | 21 | Son | Porter | New York |
| 8 | Alexander Wilson | 19 | Son | Usher | New York |
| 9 | Helen Wilson | 19 | Daughter | Nurse Maid | New York |
| 10 | John Wilson | 17 | Son | — | New York |
| 11 | Shirley @ Goode | 42 | Head | Proprietor | Michigan |
| 12 | Edith Goode | 38 | Wife | — | Kentucky |
| 13 | Kenneth Goode | 21 | Son | Proprietor-Partner | Michigan |
| 14 | Ruth Goode | 19 | Daughter in law | — | New Jersey |
| 15 | Joseph Gregory | 46 | Head | Truck Driver | New York |
| 16 | Evelyn @ Gregory | 37 | Wife | — | Massachusetts |
| 17 | Joseph Gregory | 17 | Son | — | New York |
| 18 | Ralph Gregory | 16 | Son | — | New York |
| 19 | Gloria Gregory | 15 | Daughter | — | New York |
| 20 | Frederick Gregory | 13 | Son | — | New York |
| 21 | Michael Gregory | 7 | Son | — | New York |
| 22 | Evelyn Gregory | 3 | Daughter | — | New York |
| 23 | Michael Witkowski | 48 | Head | — | Poland |
| 24 | Sonia @ Witkowski | 46 | Wife | — | Poland |
| 25 | Anthony Witkowski | 25 | Son | Porter | New York |
| 26 | John Witkowski | 9 | Son | — | New York |
| 27 | John J. @ Hart THIS PERSON | 58 | Head | — | Massachusetts |
| 28 | Mary Hart | 50 | Wife | — | New York |
| 29 | William J. Hart | 27 | Son | Physical Director | Massachusetts |
| 30 | William Jr. Hart | 4 | Grandson | — | New York |
| 31 | Josephine @ Enright | 70 | Head | — | New York |
| 32 | William P. Enright | 34 | Son | Carpenter | New York |
| 33 | Elizabeth Enright | 55 | Sister | — | New York |
| 34 | Mary @ Jones | 36 | Head | Servant | Washington D.C. |
| 35 | Henry Jones | 16 | Son | — | New York |
| 36 | Leon Jones | 10 | Son | — | New York |
| 37 | Anna @ Bailey | 55 | Lodger | Cook | Virginia |
| 38 | Carl Bailey | 26 | Lodger's Son | — | New York |
| 39 | Cora Bailey | 26 | Lodger's Daughter | Servant | New York |
| 40 | George @ Donaldson | 38 | Lodger | Chauffeur | Kentucky |
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)