JB
John Bradley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this John Bradley across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Michael & Theresa — first a head (b.~1904), then head of a 3-person household.
Age 36
b. ~1904
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Bradley |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Green Twp |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Electrical Engineer |
| Industry | Gas & Electric Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2300 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Electrical Engineer |
| Township / Ward | Green Twp |
| Est. Birth Year | ~1904 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Bradley | Daughter | — | 4 | ~1936 |
| John Bradley | Head | — | 36 | ~1904 |
| Edna Bradley | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Hamilton, Ohio
Son, age 17
Hamilton, Ohio · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Yes |
| Can Read | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Year of Naturalization | Yes |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Head, age 28
Hamilton, Ohio · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 27 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Electrician |
| Industry | Gas station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 50 |
| Veteran | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Head, age 36
Hamilton-County, Ohio · implied b. ~1904 — 3 household members
| Surname | Bradley |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Green Twp |
| 1935 Residence (County) | Hamilton |
| Occupation | Electrical Engineer |
| Industry | Gas & Electric Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2300 |
| Highest Grade | C-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 Bradley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Bradley (~0.92 confidence) and mother Theresa Bradley (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Bradley
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Theresa Bradley
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Bradley
Head · 1940 · age 36 · b. ~1904 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03077-00497)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stefan Wagner | 36 | Head | Chef | Yugoslavia |
| 2 | Theresa Wagner | 36 | Wife | — | Ohio |
| 3 | Evelyn Wagner | 10 | Daughter | — | Ohio |
| 4 | Stephen Wagner | 9 | Son | — | Ohio |
| 5 | Theresa Schlattner | 64 | Mother in law | — | Germany |
| 6 | Richard John | 35 | Head | Tax Adjuster | Ohio |
| 7 | Elizabeth John | 33 | Wife | — | Ohio |
| 8 | Joan John | 9 | Daughter | — | Ohio |
| 9 | Benj. Kimball | 49 | Head | Postal Clerk | Ohio |
| 10 | Sophie Kimball | 57 | Wife | — | Ohio |
| 11 | Harry Levy | 48 | Head | Salesman | Ohio |
| 12 | Ethel Levy | 40 | Wife | — | Ohio |
| 13 | Rita Levy | 13 | Daughter | — | Ohio |
| 14 | John J. Levy | 11 | Son | — | Ohio |
| 15 | Margaret Curran | 79 | Mother in law | — | Eire |
| 16 | Frank Murphy | 42 | Head | Salesman | Ohio |
| 17 | Laura Murphy | 37 | Wife | — | Ohio |
| 18 | John Murphy | 15 | Son | — | Ohio |
| 19 | Charles Murphy | 13 | Son | — | Ohio |
| 20 | Wm Coffee | 45 | Lodger | Waiter | Ohio |
| 21 | Wm A. Hunnery | 42 | Head | Supervisor | Ohio |
| 22 | Lillian Hunnery | 42 | Wife | — | Kentucky |
| 23 | Wm A. Jr. Hunnery | 21 | Son | New Worker | Ohio |
| 24 | Robert J. Hunnery | 15 | Son | — | Ohio |
| 25 | Alfred Borcherding | 36 | Head | Salesman | Ohio |
| 26 | Eleanor Borcherding | 33 | Wife | — | Ohio |
| 27 | Evelyn Borcherding | 12 | Daughter | — | Ohio |
| 28 | Arlene Borcherding | 9 | Daughter | — | Ohio |
| 29 | John Bradley THIS PERSON | 36 | Head | Electrical Engineer | Ohio |
| 30 | Edna Bradley | 36 | Wife | — | Ohio |
| 31 | James Bradley | 4 | Daughter | — | Ohio |
| 32 | Donald Sullivan | 38 | Head | Supervisor | Ohio |
| 33 | Ruth Sullivan | 36 | Wife | — | Ohio |
| 34 | George Mccarren | 40 | Head | Manager | Ohio |
| 35 | Catherine Mccarren | 36 | Wife | — | Ohio |
| 36 | Arthur Raible | 32 | Head | Salesman | Ohio |
| 37 | Theresa Raible | 28 | Wife | — | Ohio |
| 38 | Arthur Raible | 3 | Son | — | Ohio |
| 39 | Armor Cheeman | 47 | Head | Engineer | Ohio |
| 40 | Alma Cheeman | 40 | Wife | — | Ohio |
Pedigree Summary
John
Gen 1 · 2 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)