OJ
Otto Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tippecanoe-County, Indiana
Our Model Tree links this Otto Johnson across the 1920, 1930 and 1940 US Censuses in Tippecanoe-County, Indiana (XGBoost, ~Confirmed), with identified parents Emma & Charles — first a son (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tippecanoe-County, Indiana |
| Surname | Johnson |
| Given Name | Otto W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Lafayette |
| 1935 Residence (County) | Tippecanoe |
| Additional Details | |
| Occupation | Stenographer |
| Industry | County Court House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Stenographer |
| Township / Ward | Lafayette |
| Est. Birth Year | ~1906 |
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 Otto | Age | Birth yr |
|---|---|---|---|---|
| Otto Johnson | Son | — | 34 | ~1906 |
| Charles Johnson | Head | — | 44 | ~1896 |
| Helen Johnson | Daughter | — | 4 | ~1936 |
| Emma Johnson | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Tippecanoe, Indiana
Son, age 14
Tippecanoe, Indiana · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otis W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Tippecanoe, Indiana
Son, age 25
Tippecanoe, Indiana · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otto W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Secretary |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Tippecanoe-County, Indiana
Son, age 34
Tippecanoe-County, Indiana · implied b. ~1906 — 4 household members
| Surname | Johnson |
| Given Name | Otto W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Lafayette |
| 1935 Residence (County) | Tippecanoe |
| Occupation | Stenographer |
| Industry | County Court House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | Hs 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 Otto Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emma Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence) and mother Emma Johnson (~0.60 confidence) and father Charles Johnson (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.79
Mother
Emma Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Emma Johnson
b. ~1895
Source mother
● Household
· direct · ~0.6
Father
Charles Johnson
b. ~1896
Source father
● Household
· direct · ~0.6
This person
Anchor record
Otto Johnson
Son · 1940 · age 34 · b. ~1906 · Indiana
★ You are viewing this record
Sibling
Helen Johnson
Sibling · 1940 · age 4
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 — Tippecanoe-County, Indiana
Open full size
1940 US Federal Census — Tippecanoe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01098-00295)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bertha Sharp | 60 | Head | Practical Nurse | Indiana |
| 2 | Edward Loghry | 66 | Head | — | Illinois |
| 3 | Clara Loghry | 66 | Wife | — | Pennsylvania |
| 4 | Clarence H. Klinky | 41 | Head | Partner | Indiana |
| 5 | Dorothy O. Klinky | 40 | Wife | — | Kentucky |
| 6 | Carl E. Klinky | 21 | Son | Bookkeeper | Indiana |
| 7 | George E. Klinky | 18 | Son | Meat Cutter | Indiana |
| 8 | Helen Baker | 20 | Maid | Maid | Nebraska |
| 9 | Sam Hoekstra | 18 | Head | Laborer | Indiana |
| 10 | Mary Hoekstra | 15 | Wife | — | Indiana |
| 11 | Charles Johnson | 44 | Head | — | Sweden |
| 12 | Emma Johnson | 45 | Wife | — | Sweden |
| 13 | Helen Johnson | 4 | Daughter | — | Indiana |
| 14 | Otto W. Johnson THIS PERSON | 34 | Son | Stenographer | Indiana |
| 15 | John Penrod | 81 | Head | — | Indiana |
| 16 | Malinda Penrod | 71 | Wife | — | Indiana |
| 17 | Ellie Jackson | 44 | Head | Truck Driver | Indiana |
| 18 | Clara E. Jackson | 48 | Wife | — | Indiana |
| 19 | Betty Jackson | 17 | Daughter | — | Indiana |
| 20 | Alberta L. Jackson | 13 | Daughter | — | Indiana |
| 21 | Mary F. Jackson | 11 | Daughter | — | Indiana |
| 22 | William Lafon | 15 | Nephew | — | Indiana |
| 23 | Robert A. Lafon | 12 | Nephew | — | Indiana |
| 24 | Barbara A. Lafon | 6 | Niece | — | Indiana |
| 25 | Dora Hittle | 66 | Head | — | Indiana |
| 26 | Andrew Norden | 90 | Head | — | Sweden |
| 27 | Jean Norden | 56 | Daughter | Stenographer | Indiana |
| 28 | Herman Haywood | 33 | Nephew | Baker | Indiana |
| 29 | Floyd K. Davis | 35 | Head | Laborer | Indiana |
| 30 | Alma Davis | 34 | Wife | — | Illinois |
| 31 | Charles E. Davis | 24 | Son | Fireman | Indiana |
| 32 | James M. Davis | 16 | Son | — | Indiana |
| 33 | Helen L. Davis | 14 | Daughter | — | Indiana |
| 34 | James Swisher | 67 | Head | Plaster | Indiana |
| 35 | Lillian Swisher | 65 | Wife | — | Indiana |
| 36 | Harry G. Jenkins | 39 | Head | Manager | Indiana |
| 37 | Ruth J. Jenkins | 35 | Wife | — | Missouri |
| 38 | Mary J. Jenkins | 9 | Daughter | — | Illinois |
| 39 | Harry Jr. Jenkins | 7 | Son | — | Iowa |
| 40 | Robert F. Mater | 30 | Head | Advertising Salesman | Indiana |
Pedigree Summary
Otto + 1 sibling
Gen 1 · 5 parents
~0.79
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)