TJ
Theodore Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Indiana
Our Model Tree links this Theodore Johnson across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Indiana (XGBoost, ~Confirmed), with identified parents Francis & Francis — first a son (b.~1910), then head of a 6-person household.
Age 30
b. ~1910
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Indiana |
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Fall Creek |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Truck driver |
| Industry | service station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Truck Driver |
| Township / Ward | Fall Creek |
| Est. Birth Year | ~1910 |
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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| Vivian Johnson | Daughter | — | 15 | ~1925 |
| Francis Johnson | Head | — | 54 | ~1886 |
| Francis Johnson | Son | — | 21 | ~1919 |
| Theodore Johnson | Son | — | 30 | ~1910 |
| Russell Johnson | Son | — | 27 | ~1913 |
| Ethel Johnson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Hamilton, Indiana
Son, age 9
Hamilton, Indiana · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Hamilton, Indiana
Son, age 19
Hamilton, Indiana · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Indiana |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Hamilton-County, Indiana
Son, age 30
Hamilton-County, Indiana · implied b. ~1910 — 6 household members
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Fall Creek |
| 1935 Residence (County) | Hamilton |
| Occupation | Truck driver |
| Industry | service station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 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 Theodore Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Francis Johnson (~0.92 confidence) and father Francis Johnson (~0.92 confidence) and mother Bessie Johnson (~0.92 confidence) and mother Ethel Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Francis Johnson
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Francis Johnson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Bessie Johnson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Ethel Johnson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Son · 1940 · age 30 · b. ~1910 · Indiana
★ You are viewing this record
Sibling
Francis Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Johnson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vivian Johnson
Sibling · 1940 · age 15
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 — Hamilton-County, Indiana
Open full size
1940 US Federal Census — Hamilton-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01050-00211)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clarence W. Sparrow | 34 | Head | Farm Operator | Kentucky |
| 42 | Mae Sparrow | 29 | Wife | — | Kentucky |
| 43 | Almeda Sparrow | 1 | Daughter | — | Indiana |
| 44 | Guy W. Whetsel | 51 | Head | Farm Operator | Indiana |
| 45 | Hazel Whetsel | 47 | Wife | — | Indiana |
| 46 | Charles Whetsel | 25 | Son | — | Indiana |
| 47 | Farris H. Day | 44 | Head | Farm Operator | Indiana |
| 48 | Mae Day | 39 | Wife | — | Indiana |
| 49 | James C. Russell | 69 | Head | Farm Operator | Indiana |
| 50 | Ernie M. Russell | 65 | Wife | — | Indiana |
| 51 | Harry Beaver | 62 | Head | Carpenter | Indiana |
| 52 | Katherine Beaver | 59 | Wife | — | Indiana |
| 53 | Julius Beaver | 54 | Head | Painter | Indiana |
| 54 | Evelyn Beaver | 23 | Wife | — | Louisiana |
| 55 | Nancy L. Beaver | 1 | Daughter | — | Indiana |
| 56 | Mary K. Beaver | 0 | Daughter | — | Indiana |
| 57 | Paul A. Christ | 39 | Head | Route Foreman | Indiana |
| 58 | Oneida Christ | 43 | Wife | — | Indiana |
| 59 | Dale M. Christ | 20 | Son | — | Indiana |
| 60 | Clint Zimmerman | 50 | Head | Farm Operator | Indiana |
| 61 | Pearl Zimmerman | 50 | Wife | — | Indiana |
| 62 | James A. Craig | 72 | Head | — | Indiana |
| 63 | Sarah L. Craig | 69 | Wife | — | Indiana |
| 64 | Francis Johnson | 54 | Head | Farm Operator | Kansas |
| 65 | Ethel Johnson | 53 | Wife | — | Indiana |
| 66 | Theodore Johnson THIS PERSON | 30 | Son | Truck Driver | Indiana |
| 67 | Russell Johnson | 27 | Son | Truck Driver | Indiana |
| 68 | Francis Jr. Johnson | 21 | Son | Press Line | Indiana |
| 69 | Vivian M. Johnson | 15 | Daughter | — | Indiana |
| 70 | Hollis E. Hackle | 26 | Head | Farm Operator | Indiana |
| 71 | Francis Hackle | 24 | Wife | — | Indiana |
| 72 | Thomas Hackle | 4 | Son | — | Indiana |
| 73 | O. Lemuel Clark | 66 | Head | Farm Operator | Indiana |
| 74 | Rhetta Clark | 66 | Wife | — | Indiana |
| 75 | Albert Julian | 63 | Head | Laborer | Indiana |
| 76 | Christine Julian | 55 | Wife | — | Wisconsin |
| 77 | Florence Julian | 17 | Daughter | — | Indiana |
| 78 | Frank A. Kuhn | 36 | Head | Farm Operator | Indiana |
| 79 | Ethel I. Kuhn | 30 | Wife | — | Indiana |
| 80 | Harry E. Manship | 51 | Head | Farm Operator | Indiana |
Pedigree Summary
Theodore + 3 siblings
Gen 1 · 4 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)