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Jack Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monroe-County, Indiana
Our Model Tree links this Jack Johnson across the 1920, 1930 and 1940 US Censuses in Monroe-County, Indiana (XGBoost, ~Confirmed), with identified parents Frank & Ella — first a head (b.~1908), then head of a 8-person household.
Age 32
b. ~1908
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Indiana |
| Surname | Johnson |
| Given Name | Jack |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington Township |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | Laborer |
| Industry | City water |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Bloomington Township |
| Est. Birth Year | ~1908 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Gladys Johnson | Daughter | — | 5 | ~1935 |
| Jean Johnson | Daughter | — | 10 | ~1930 |
| Doris Johnson | Daughter | — | ~1940 | |
| Elizabeth Johnson | Daughter | — | 12 | ~1928 |
| Mary Johnson | Daughter | — | 11 | ~1929 |
| Jack Johnson | Head | — | 32 | ~1908 |
| Donley Johnson | Son | — | 9 | ~1931 |
| Lucy Johnson | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Monroe, Indiana
Son, age 13
Monroe, Indiana · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jack A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Monroe, Indiana
Head, age 23
Monroe, Indiana · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jack |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 19 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Monroe-County, Indiana
Head, age 32
Monroe-County, Indiana · implied b. ~1908 — 8 household members
| Surname | Johnson |
| Given Name | Jack |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington Township |
| 1935 Residence (County) | Monroe |
| Occupation | Laborer |
| Industry | City water |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Jack Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Johnson (~0.92 confidence) and mother Ella Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Johnson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Ella Johnson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jack Johnson
Head · 1940 · age 32 · b. ~1908 · Indiana
★ 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 — Monroe-County, Indiana
Open full size
1940 US Federal Census — Monroe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01079-00682)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grandson Williams | None | M | — | — |
| 42 | Granddaughter Alincuyne | None | F | — | — |
| 43 | Jack Johnson THIS PERSON | 32 | Head | Laborer | Indiana |
| 44 | Lucy E Johnson | 30 | Wife | — | Indiana |
| 45 | Elizabeth Johnson | 12 | Daughter | — | Indiana |
| 46 | Mary Lou Johnson | 11 | Daughter | — | Indiana |
| 47 | Jean Johnson | 10 | Daughter | — | Indiana |
| 48 | Donley Johnson | 9 | Son | — | Indiana |
| 49 | Gladys Johnson | 5 | Daughter | — | Indiana |
| 50 | Doris Johnson | 0 | Daughter | — | Indiana |
| 51 | Bertie Hinckle | 51 | Head | Grader | Indiana |
| 52 | Bertha Hinckle | 50 | Wife | Helper | Indiana |
| 53 | Betty Hinckle | 23 | Daughter | — | Indiana |
| 54 | Alva S Neil | 73 | Head | Pensioner | Indiana |
| 55 | Alfred Neil | 73 | Brother | Pensioner | Indiana |
| 56 | Leo F Johnson | 31 | Head | Trucker | Indiana |
| 57 | Gwendolin Johnson | 30 | Wife | — | Indiana |
| 58 | Martha Johnson | 8 | Daughter | — | Indiana |
| 59 | Leo F Johnson | 2 | Son | — | Indiana |
| 60 | Jane E Johnson | 0 | Son | — | Indiana |
| 61 | Forest Hanson | 30 | Head | Heater | Indiana |
| 62 | Lucille Hanson | 29 | Wife | — | Indiana |
| 63 | Norma Hanson | 13 | Daughter | — | Indiana |
| 64 | Blaine Hinckle | 29 | Head | Heater | Indiana |
| 65 | Elizabeth Hinckle | 23 | Wife | — | Indiana |
| 66 | Nathan Hamilton | 29 | Head | Laborer | Indiana |
| 67 | Henrietta Hinckle | 44 | Head | Washer | Indiana |
| 68 | Merle Hinckle | 48 | Wife | — | Indiana |
| 69 | Earnest Farr | 27 | Head | Coal Truck | Indiana |
| 70 | Doris Farr | 18 | Wife | — | Iowa |
| 71 | Rachel Ann Farr | 1 | Daughter | — | Indiana |
| 72 | John Fielder | 54 | Head | Cabinet Mkr | Indiana |
| 73 | Enda Fielder | 48 | Wife | — | Indiana |
| 74 | Clinton Fielder | 17 | Son | Helper | Indiana |
| 75 | William Fielder | 12 | Son | — | Indiana |
| 76 | Bert Engledow | 40 | Head | Carpenter | Indiana |
| 77 | Hazel Engledow | 38 | Wife | — | Indiana |
| 78 | Mark Engledow | 20 | Son | — | Indiana |
| 79 | Carl Hinckle | 40 | Head | Painter | Indiana |
| 80 | Luella Hinckle | 37 | Wife | — | Indiana |
Pedigree Summary
Jack
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)