JH
John Hart — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this John Hart across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 6-person household.
Age 63
b. ~1877
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Hart |
| Given Name | John R. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | machinist |
| Industry | part owner machine shop |
| Class of Worker | OA |
| Hours Worked | 38 |
| Income (1939) | 2300 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Machinist |
| Township / Ward | Detroit |
| Est. Birth Year | ~1877 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Vera Taylor | Daughter | — | 34 | ~1906 |
| John Hart | Head | — | 63 | ~1877 |
| Anna Taylor | Other | — | 2 | ~1938 |
| Cecil Taylor | Other | — | 34 | ~1906 |
| Richard Taylor | Other | — | 9 | ~1931 |
| Anna Hart | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Wayne, Michigan
Head, age 44
Wayne, Michigan · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1906 |
| Naturalization Status | First papers filed |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Industry | Tool Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Wayne, Michigan
Head, age 52
Wayne, Michigan · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | First papers filed |
| Year of Immigration | 1917 |
| Age at First Marriage | 24 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Industry | Trailer Maker |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Wayne-County, Michigan
Head, age 63
Wayne-County, Michigan · implied b. ~1877 — 6 household members
| Surname | Hart |
| Given Name | John R. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Occupation | machinist |
| Industry | part owner machine shop |
| Class of Worker | OA |
| Hours Worked | 38 |
| Income (1939) | 2300 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth Country | England |
| Birthplace (normalized) | england |
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 63 · b. ~1877 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01883-00904)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice | 27 | wife | — | Michigan |
| 2 | Alvin | 9 | son | — | Michigan |
| 3 | Donald | 7 | son | — | Michigan |
| 4 | Dennis | 2 | son | — | Michigan |
| 5 | Joseph Ventimiglia | 35 | head | Polisher | Italy |
| 6 | Pearl Ventimiglia | 25 | wife | — | Michigan |
| 7 | Philip Ventimiglia | 9 | son | — | Michigan |
| 8 | Frances Ventimiglia | 6 | daughter | — | Michigan |
| 9 | Anne Shirley Ventimiglia | 3 | daughter | — | Michigan |
| 10 | Mary Piscopo | 44 | head | — | Italy |
| 11 | Biagio Piscopo | 16 | son | — | New Jersey |
| 12 | Justine Piscopo | 13 | daughter | — | New Jersey |
| 13 | Armando Piscopo | 10 | son | — | Michigan |
| 14 | Frank Garavaglia | 45 | head | Line Man | Italy |
| 15 | Catherine Garavaglia | 40 | wife | — | Italy |
| 16 | Josephine Garavaglia | 19 | daughter | — | Italy |
| 17 | Raymond Garavaglia | 9 | son | — | Michigan |
| 18 | Mary Ann Garavaglia | 7 | daughter | — | Michigan |
| 19 | Joe Calentura | 27 | nephew | Assembler | Michigan |
| 20 | William Schenk | 59 | head | Sheet Metal | Germany |
| 21 | Paul Schenk | 18 | son | Clerk | Michigan |
| 22 | Joseph Gessel | 36 | head | Bottler | North Dakota |
| 23 | Catherine Gessel | 28 | wife | — | Hungary |
| 24 | Joseph M. Gessel | 10 | son | — | Michigan |
| 25 | James J. Gessel | 5 | son | — | Michigan |
| 26 | Clara L. Gessel | 2 | daughter | — | Michigan |
| 27 | Wallace Biffani | 47 | head | Stock Man | England |
| 28 | Bertha Biffani | 57 | wife | Seamstress | Germany |
| 29 | John R. Hart THIS PERSON | 63 | head | Machinist | England |
| 30 | Anna Hart | 60 | wife | — | England |
| 31 | Cecil Taylor | 34 | son-in-law | Machinist | Missouri |
| 32 | Vera Taylor | 34 | daughter | — | Canada |
| 33 | Richard Taylor | 9 | grandson | — | Michigan |
| 34 | Anna Mae Taylor | 2 | granddaughter | — | Michigan |
| 35 | Peter Eickhorn | 31 | head | Finisher | Hungary |
| 36 | Wilhelmina Eickhorn | 30 | wife | — | Russia |
| 37 | Elizabeth Eickhorn | 8 | daughter | — | Michigan |
| 38 | John Eickhorn | 6 | son | — | Michigan |
| 39 | Paul Eickhorn | 4 | son | — | Michigan |
| 40 | Frederick Dubbe | 22 | brother-in-law | Polisher | Illinois |
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)