JH
John Hart — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Hart across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 3-person household.
Age 57
b. ~1883
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Hart |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Beech Grove |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Machine operator |
| Industry | Furniture mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 496 |
| Highest Grade | 4 |
| 1935 Residence | Indiana |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Machine Operator |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1883 |
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 |
|---|---|---|---|---|
| John Hart | Head | — | 57 | ~1883 |
| Vincent Hart | Son | — | 30 | ~1910 |
| Margaret Hart | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Marion, Indiana
Head, age 37
Marion, Indiana · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Texas |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | Furniture factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Marion, Indiana
Head, age 47
Marion, Indiana · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 26 |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Occupation | Woodworker |
| Industry | Furniture Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Marion-County, Indiana
Head, age 57
Marion-County, Indiana · implied b. ~1883 — 3 household members
| Surname | Hart |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Beech Grove |
| 1935 Residence (County) | Marion |
| Occupation | Machine operator |
| Industry | Furniture mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 496 |
| Highest Grade | 4 |
| 1935 Residence | Indiana |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 57 · b. ~1883 · Indiana
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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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01129-00172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John F. Blankenship | 55 | Head | Trucking | Kentucky |
| 2 | Fanny Blankenship | 53 | Wife | — | Kentucky |
| 3 | Robert W. Blankenship | 27 | Son | Labor | Indiana |
| 4 | Ray Blankenship | 24 | Son | Helper | Indiana |
| 5 | John L. Elliott | 52 | Head | — | Indiana |
| 6 | Edna R. Elliott | 48 | Wife | Grey Inspector | Indiana |
| 7 | Belle E. Johnson | 61 | Head | Weaver | Pennsylvania |
| 8 | William W. Staten | 49 | Head | Machinist | Indiana |
| 9 | Pearl M. Staten | 39 | Wife | Packer | Indiana |
| 10 | Robert H. Staten | 15 | Son | — | Indiana |
| 11 | Leonard M. Wall | 50 | Head | Machinist Welder | Indiana |
| 12 | Lillian M. Wall | 44 | Wife | — | Indiana |
| 13 | Bradley Holman | 27 | Head | Helper | Kentucky |
| 14 | Maybelle Holman | 22 | Wife | — | Kentucky |
| 15 | Betty R. Holman | 4 | Daughter | — | Kentucky |
| 16 | Alice F. Holman | 0 | Daughter | — | Indiana |
| 17 | Glen A. Andrews | 43 | Head | Mechanic | Indiana |
| 18 | Marjorie M. Andrews | 36 | Wife | Designer Florist | Indiana |
| 19 | Donald J. Andrews | 8 | Son | — | Indiana |
| 20 | James M. Conlin | 68 | Father-in-law | — | Indiana |
| 21 | Charles B. Conlin | 38 | Brother-in-law | Mechanic | Indiana |
| 22 | Norona Lance | 19 | Cousin | Typist | Indiana |
| 23 | Arthur C. Magnus | 57 | Head | — | Ohio |
| 24 | Mystie S. Magnus | 60 | Wife | — | Ohio |
| 25 | John A. Hart THIS PERSON | 57 | Head | Machine Operator | Missouri |
| 26 | Margaret O. Hart | 57 | Wife | — | Ohio |
| 27 | Vincent J. Hart | 30 | Son | Baker'S Helper | Indiana |
| 28 | William R. Sharpe | 44 | Head | Foreman | Kentucky |
| 29 | Katherine R. Sharpe | 43 | Wife | — | Kentucky |
| 30 | Katherine M. Baldwin | 22 | Daughter | Stenographer | Indiana |
| 31 | Lois Ann Baldwin | 3 | Granddaughter | — | Indiana |
| 32 | Susan A. Mencer | 1 | Granddaughter | — | Indiana |
| 33 | Trigee Kaim | 52 | Head | — | Syria |
| 34 | Edna Kaim | 29 | Daughter | — | Syria |
| 35 | Anes Kaim | 22 | Son | Laborer Picking Dept | Massachusetts |
| 36 | Phillip Kaim | 19 | Son | — | Indiana |
| 37 | Mary Kaim | 17 | Daughter | — | Indiana |
| 38 | Joe Kaim | 9 | Son | — | Indiana |
Related Census Records
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)