JB
John Bradley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Otter-Tail-County, Minnesota
Our Model Tree links this John Bradley across the 1910, 1920, 1930 and 1940 US Censuses in Otter-Tail-County, Minnesota (XGBoost, ~Confirmed), with identified parents John & Roney — first a son (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Otter-Tail-County, Minnesota |
| Surname | Bradley |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Elmo Township |
| 1935 Residence (County) | Otter Tail |
| Additional Details | |
| Occupation | Helper |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 866 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Helper |
| Township / Ward | Elmo Township |
| Est. Birth Year | ~1902 |
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 |
|---|---|---|---|---|
| John Bradley | Head | — | 68 | ~1872 |
| Clarence Bradley | Son | — | 32 | ~1908 |
| John Bradley | Son | — | 38 | ~1902 |
Census Appearances
1910
Otter Tail, …
Son, age 8
Otter Tail, Minnesota · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | John R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Norway |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Otter Tail, …
Son, age 18
Otter Tail, Minnesota · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Otter Tail, …
Son, age 28
Otter Tail, Minnesota · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | John R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Norway |
| Occupation | Laborer |
| Industry | Gen. Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Otter-Tail-County, Minnesota
Son, age 38
Otter-Tail-County, Minnesota · implied b. ~1902 — 3 household members
| Surname | Bradley |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Elmo Township |
| 1935 Residence (County) | Otter Tail |
| Occupation | Helper |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 866 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Bradley (~0.92 confidence) and mother Roney Bradley (~0.92 confidence) and mother G Bradley (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Bradley
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Roney Bradley
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
G Bradley
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Bradley
Son · 1940 · age 38 · b. ~1902 · Minnesota
★ You are viewing this record
Sibling
Clarence Bradley
Sibling · 1940 · age 32
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 — Otter-Tail-County, Minnesota
Open full size
1940 US Federal Census — Otter-Tail-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01945-00431)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arnold H Johnson | 35 | Head | Trucker | N. Dakota |
| 2 | Pearl E Johnson | 27 | Wife | — | Minnesota |
| 3 | Larry A Johnson | 1 | Son | — | Minnesota |
| 4 | Edward J Wesley | 50 | Head | Farmer | Michigan |
| 5 | Augusta F Wesley | 48 | Wife | — | Minnesota |
| 6 | Harry W Wesley | 22 | Son | Laborer | Minnesota |
| 7 | Alice M Wesley | 19 | Daughter | Maid | Minnesota |
| 8 | Eddie F Wesley | 17 | Son | Driver | Minnesota |
| 9 | Vera E Wesley | 16 | Daughter | — | Minnesota |
| 10 | Ralph L Wesley | 13 | Son | — | Minnesota |
| 11 | Sidney L Bowman | 20 | Son-in-law | Cutter | Minnesota |
| 12 | Bertha L Bowman | 21 | Daughter | — | Minnesota |
| 13 | Clarence Vaught | 28 | Head | Farmer | Minnesota |
| 14 | Gladys Vaught | 28 | Wife | — | Minnesota |
| 15 | Emil Olson | 63 | Head | Farmer | Minnesota |
| 16 | Randena Olson | 60 | Wife | — | Norway |
| 17 | Anna R Olson | 19 | Daughter | — | Minnesota |
| 18 | John T Bradley | 68 | Head | Farmer | Wisconsin |
| 19 | John T Bradley THIS PERSON | 38 | Son | Helper | Minnesota |
| 20 | Clarence N Bradley | 32 | Son | Helper | Minnesota |
| 21 | Arthur Simonson | 42 | Head | Carpenter | Minnesota |
| 22 | Ella M Simonson | 37 | Wife | — | Minnesota |
| 23 | Philip S Simonson | 15 | Son | — | Minnesota |
| 24 | Lois M Simonson | 12 | Daughter | — | Minnesota |
| 25 | Betty Lou Simonson | 10 | Daughter | — | Minnesota |
| 26 | Jos W Polipnick | 24 | Son-in-law | Helper | Minnesota |
| 27 | Verna M Polipnick | 20 | Wife | — | Minnesota |
| 28 | Roy G Sinclair | 36 | Head | Construction | Michigan |
| 29 | Elena P Sinclair | 27 | Wife | — | Minnesota |
| 30 | Donald F Sinclair | 7 | Son | — | Minnesota |
| 31 | Dale C Sinclair | 5 | Son | — | Minnesota |
| 32 | Douglas M Sinclair | 2 | Son | — | Minnesota |
| 33 | Raymond H Curtis | 33 | Head | Cutter | Iowa |
| 34 | Lillian M Curtis | 30 | Wife | — | Minnesota |
| 35 | Dolores L Curtis | 7 | Daughter | — | Minnesota |
| 36 | Mavis R Curtis | 6 | Daughter | — | Minnesota |
| 37 | David L Curtis | 4 | Son | — | Minnesota |
| 38 | Helen M Curtis | 3 | Daughter | — | Minnesota |
| 39 | Harris O Curtis | 1 | Son | — | Minnesota |
| 40 | Gertrude Peterson | 26 | Head | Teacher | Minnesota |
Pedigree Summary
John + 1 sibling
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)