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James Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this James Johnson across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Benjamin & Benjamin — first a son (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Son
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Johnson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Laborer |
| Industry | Ecken Prod Co |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 741 |
| Highest Grade | G 7 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1909 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Benjamin Johnson | Head | — | 62 | ~1878 |
| James Johnson | Son | — | 31 | ~1909 |
| Robert Johnson | Son | — | 19 | ~1921 |
| Maud Johnson | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Marion, Indiana
Son, age 9
Marion, Indiana · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 20
Marion, Indiana · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | Electric Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 31
Marion-County, Indiana · implied b. ~1909 — 4 household members
| Surname | Johnson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Laborer |
| Industry | Ecken Prod Co |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 741 |
| Highest Grade | G 7 |
| 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 James Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Benjamin Johnson (~0.92 confidence) and father Benjamin Johnson (~0.92 confidence) and mother Maude Johnson (~0.92 confidence) and mother Maud Johnson (~0.92 confidence) and mother Maude Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Johnson
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Benjamin Johnson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Maude Johnson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Maud Johnson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Maude Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Johnson
Son · 1940 · age 31 · b. ~1909 · Indiana
★ You are viewing this record
Sibling
Robert Johnson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
40 people indexed on this census page (nara:1940:m-t0627-01128-00399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Stowe | 12 | Son | — | Ohio |
| 42 | Lewis D. Stowe | 9 | Son | — | Illinois |
| 43 | Earl Stowe | 34 | Brother | Mine Worker | Kentucky |
| 44 | Lewis De Dreman | 27 | Head | Factory Work | Indiana |
| 45 | Glena D. De Dreman | 25 | Wife | — | Tennessee |
| 46 | Ronald De Dreman | 2 | Son | — | Indiana |
| 47 | E. H. Stay | 44 | Head | Car Salesman | Kentucky |
| 48 | Emily Stay | 32 | Wife | — | Kentucky |
| 49 | Hubert Stay | 17 | Son | Nya | Colorado |
| 50 | Russel James Stay | 15 | Son | — | Indiana |
| 51 | Lucille Stay | 11 | Daughter | — | Indiana |
| 52 | Benjamin Johnson | 62 | Head | Sledge Fin | Indiana |
| 53 | Maud Johnson | 56 | Wife | — | Indiana |
| 54 | James Johnson THIS PERSON | 31 | Son | Laborer | Indiana |
| 55 | Robert Johnson | 19 | Son | Helper | Indiana |
| 56 | Claude Privet | 29 | Head | Meat Cutter | Indiana |
| 57 | Nellie Privet | 22 | Wife | — | Indiana |
| 58 | Earl Privet | 3 | Son | — | Indiana |
| 59 | James Privet | 1 | Son | — | Indiana |
| 60 | William Altermeyer | 22 | Head | Machinist | Indiana |
| 61 | Lois Altermeyer | 21 | Wife | — | Indiana |
| 62 | Blanche Chambers | 25 | Head | Machinist | Tennessee |
| 63 | Neda Chambers | 24 | Wife | — | Kentucky |
| 64 | Barbara Chambers | 8 | Daughter | — | Indiana |
| 65 | Patricia Chambers | 5 | Daughter | — | Indiana |
| 66 | James L. Smith | 27 | Head | Roll Machine | Indiana |
| 67 | Annie Smith | 27 | Wife | — | Tennessee |
| 68 | Sidney B. Mccall | 53 | Head | Transportation | Virginia |
| 69 | Lily Mccall | 48 | Wife | — | Indiana |
| 70 | Thomas Mccall | 28 | Son | Factory Work | Indiana |
| 71 | Manuel Lichten | 35 | Head | Head Time Keeper | North Dakota |
| 72 | Jenesse Lichten | 29 | Wife | — | Indiana |
| 73 | Joseph Bass | 23 | Lodger | — | Indiana |
| 74 | Frank Hammons | 39 | Head | Welder | Kentucky |
| 75 | Eunice Hammons | 37 | Wife | — | Kentucky |
| 76 | Arnold Hammons | 18 | Son | — | Indiana |
| 77 | Frank Hammons | 14 | Son | — | Indiana |
| 78 | Mary Edith Hammons | 10 | Daughter | — | Indiana |
| 79 | Robert Hammons | 7 | Son | — | Kentucky |
| 80 | William Hammons | 5 | Son | — | Indiana |
Pedigree Summary
James + 1 sibling
Gen 1 · 5 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)