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John Bradford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fairfield-County, Ohio
Our Model Tree links this John Bradford across the 1930 and 1940 US Censuses in Fairfield-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 15-person household.
Age 21
b. ~1919
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fairfield-County, Ohio |
| Surname | Bradford |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lancaster City |
| 1935 Residence (County) | Fairfield |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Lancaster City |
| Est. Birth Year | ~1919 |
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.
15 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Richard Bradford | Son | — | 1 | ~1939 |
| Daniel Bradford | Son | — | 14 | ~1926 |
| Roderick Bradford | Son | — | 16 | ~1924 |
| Owen Bradford | Son | — | 17 | ~1923 |
| Stanley Bradford | Son | — | 11 | ~1929 |
| James Bradford | Son | — | 19 | ~1921 |
| Mary Bradford | Spouse | — | 48 | ~1892 |
| John Bradford | Son | — | 21 | ~1919 |
| Betty Bradford | Other | — | 6 | ~1934 |
| Clarence Bradford | Son | — | 12 | ~1928 |
| Robert Bradford | Son | — | 21 | ~1919 |
| June Bradford | Daughter | — | 9 | ~1931 |
| Philip Bradford | Son | — | 6 | ~1934 |
| Arnold Bradford | Son | — | 4 | ~1936 |
| Jeff Bradford | Head | — | 51 | ~1889 |
Census Appearances
1930
Fairfield, Ohio
Son, age 9
Fairfield, Ohio · implied b. ~1921 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradford |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Fairfield-County, Ohio
Son, age 21
Fairfield-County, Ohio · implied b. ~1919 — 15 household members
| Surname | Bradford |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lancaster City |
| 1935 Residence (County) | Fairfield |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-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 John Bradford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Bradford
Son · 1940 · age 21 · b. ~1919 · Ohio
★ You are viewing this record
Sibling
Philip Bradford
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Bradford
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Bradford
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Bradford
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roderick Bradford
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Bradford
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Bradford
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Bradford
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Bradford
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Bradford
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Owen Bradford
Sibling · 1940 · age 17
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 — Fairfield-County, Ohio
Open full size
1940 US Federal Census — Fairfield-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03066-00133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Georgia Burnside | 28 | Wife | Music Teacher | Ohio |
| 2 | Geraldine Burnside | 3 | Daughter | — | Ohio |
| 3 | Russell Burnside | 1 | Son | — | Ohio |
| 4 | George Burnside | 0 | Son | — | Ohio |
| 5 | Stella Moore | 61 | Head | Seamstress | Ohio |
| 6 | Donald Moore | 16 | Son | — | Ohio |
| 7 | Charles Moore | 13 | Son | — | Ohio |
| 8 | Harold Helwig | 33 | Son-in-law | Carrier | Ohio |
| 9 | Thelma Helwig | 30 | Daughter | — | Ohio |
| 10 | Mildred Helwig | 11 | Granddaughter | — | Ohio |
| 11 | Kenneth Helwig | 2 | Grandson | — | Ohio |
| 12 | Charles Mccoy | 26 | Head | Laborer | Ohio |
| 13 | Esther Mccoy | 25 | Wife | — | Ohio |
| 14 | Joan Mccoy | 5 | Daughter | — | Ohio |
| 15 | Margie Mccoy | 2 | Daughter | — | Ohio |
| 16 | Jeff Bradford | 51 | Head | — | Ohio |
| 17 | Mary Bradford | 48 | Wife | — | Ohio |
| 18 | Robert Bradford | 21 | Son | — | Ohio |
| 19 | John Bradford THIS PERSON | 21 | Son | — | Ohio |
| 20 | James Bradford | 19 | Son | Surveying | Ohio |
| 21 | Owen Bradford | 17 | Son | — | Ohio |
| 22 | Roderick Bradford | 16 | Son | — | Ohio |
| 23 | Daniel Bradford | 14 | Son | — | Ohio |
| 24 | Clarence Bradford | 12 | Son | — | Ohio |
| 25 | Stanley Bradford | 11 | Son | — | Ohio |
| 26 | June Bradford | 9 | Daughter | — | Ohio |
| 27 | Philip Bradford | 6 | Son | — | Ohio |
| 28 | Arnold Bradford | 4 | Son | — | Ohio |
| 29 | Richard Bradford | 1 | Son | — | Ohio |
| 30 | Betty Bradford | 6 | Granddaughter | — | Ohio |
| 31 | Lawrence Dupler | 28 | Head | Trimmer | Ohio |
| 32 | Lerna Dupler | 23 | Wife | — | Ohio |
| 33 | Harry Warner | 37 | Head | Assistant Superintendent | Ohio |
| 34 | Elma Warner | 33 | Wife | — | Ohio |
| 35 | Joan Warner | 13 | Daughter | — | Ohio |
| 36 | Mary Warner | 11 | Daughter | — | Ohio |
| 37 | Harold Warner | 10 | Son | — | Ohio |
| 38 | Clara Warner | 8 | Daughter | — | Ohio |
| 39 | Keith Warner | 6 | Son | — | Ohio |
| 40 | Bert Murphy | 75 | Head | Carpenter | Ohio |
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)