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Robert Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butler-County, Ohio
Our Model Tree links this Robert Johnson across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed), with identified parents Lawrence & Clarence — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Butler-County, Ohio |
| Surname | Johnson |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Union Twp |
| 1935 Residence (County) | Butler |
| Additional Details | |
| Occupation | Cost Clerk |
| Industry | Paper |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1550 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Cost Clerk |
| Township / Ward | Union Twp |
| Est. Birth Year | ~1916 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Clarence Johnson | Head | — | 53 | ~1887 |
| Elizabeth Johnson | Other | — | 84 | ~1856 |
| Thomas Johnson | Son | — | 25 | ~1915 |
| Robert Johnson | Son | — | 24 | ~1916 |
| James Johnson | Son | — | 18 | ~1922 |
| Winona Johnson | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Butler, Ohio
Son, age 4
Butler, Ohio · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Butler, Ohio
Son, age 14
Butler, Ohio · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Butler-County, Ohio
Son, age 24
Butler-County, Ohio · implied b. ~1916 — 6 household members
| Surname | Johnson |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Union Twp |
| 1935 Residence (County) | Butler |
| Occupation | Cost Clerk |
| Industry | Paper |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1550 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Robert Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lawrence Johnson (~0.92 confidence) and father Clarence Johnson (~0.92 confidence) and mother Wynona Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lawrence Johnson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Clarence Johnson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Wynona Johnson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Johnson
Son · 1940 · age 24 · b. ~1916 · Ohio
★ You are viewing this record
Sibling
James Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Johnson
Sibling · 1940 · age 25
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 — Butler-County, Ohio
Open full size
1940 US Federal Census — Butler-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03035-01027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ednam Ringness | 49 | Wife | — | Ohio |
| 2 | Lilliem Helsel | 55 | Sister-in-law | — | Ohio |
| 3 | (Wishes To Mail Information To Hamilton Office) Palmer | None | F | — | — |
| 4 | (Wishes To Mail Information To Hamilton Office) Palmer | None | F | — | — |
| 5 | (Wishes To Mail Information To Hamilton Office) Palmer | None | F | — | — |
| 6 | (Wishes To Mail Information To Hamilton Office) Palmer | None | F | — | — |
| 7 | Charles J. Philpot | 30 | Head | Truck Driver | Kentucky |
| 8 | Eva B. Philpot | 29 | Wife | — | Kentucky |
| 9 | Phylis S. Philpot | 5 | Daughter | — | Ohio |
| 10 | John A. Davis | 34 | Head | Farm Operator | Ohio |
| 11 | Flora D. Davis | 31 | Wife | — | Ohio |
| 12 | Patty Lee Davis | 8 | Daughter | — | Ohio |
| 13 | Joan M. Davis | 7 | Daughter | — | Ohio |
| 14 | Truman J. Davis | 5 | Son | — | Ohio |
| 15 | August H. Schaiper | 39 | Head | Farm Operator | Ohio |
| 16 | Minnie C. Schaiper | 38 | Wife | — | Ohio |
| 17 | Arthur J. Schaiper | 12 | Son | — | Ohio |
| 18 | Marian C. Schaiper | 10 | Daughter | — | Ohio |
| 19 | Harry Angelback | 51 | Head | Machinist | Ohio |
| 20 | Viola Angelback | 56 | Wife | — | Ohio |
| 21 | Harry Bater | 50 | Head | Line Foreman | Ohio |
| 22 | Blanche Bater | 47 | Wife | — | Ohio |
| 23 | Harry Jr. Bater | 18 | Son | Mattress Maker | Ohio |
| 24 | Fred M. Beckley | 51 | Head | Farm Operator | Ohio |
| 25 | Hazel C. Beckley | 48 | Wife | — | Ohio |
| 26 | Thos A. Woods | 63 | Head | Farm Operator | Ohio |
| 27 | Mary A. Woods | 50 | Wife | — | Ohio |
| 28 | Marlin Woods | 14 | Son | — | Ohio |
| 29 | Barbara Woods | 12 | Daughter | — | Ohio |
| 30 | Kenneth Woods | 8 | Son | — | Ohio |
| 31 | Charlotte Woods | 6 | Daughter | — | Ohio |
| 32 | George J. Hertel | 63 | Head | — | Kentucky |
| 33 | Mary A. Hertel | 56 | Wife | — | Kentucky |
| 34 | Clarence Johnson | 53 | Head | Dairy Farmer | Ohio |
| 35 | Winona W. Johnson | 48 | Wife | — | Indiana |
| 36 | Thomas D. Johnson | 25 | Son | Bank Teller | Ohio |
| 37 | Robert L. Johnson THIS PERSON | 24 | Son | Cost Clerk | Ohio |
| 38 | James J. Johnson | 18 | Son | — | Ohio |
| 39 | Elizabeth J. Johnson | 84 | Mother | — | Ohio |
| 40 | Albert P. Wardwell | 39 | Head | Station Operator | Michigan |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 3 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)