JB
John Bradley — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this John Bradley across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Patrick & Olive — first a head (b.~1907), then head of a 3-person household.
Age 33
b. ~1907
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Bradley |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Asst. Cashier |
| Industry | Co. Treas. Office |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Asst. Cashier |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1907 |
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 | — | 33 | ~1907 |
| John Bradley | Son | — | 1 | ~1939 |
| Fern Bradley | Spouse | — | 30 | ~1910 |
Census Appearances
1920
King, Washington
Son, age 12
King, Washington · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Wales |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
King, Washington
Son, age 23
King, Washington · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Wales |
| Mother's Birthplace | Missouri |
| Occupation | Salesman |
| Industry | Automobile Parts |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
King-County, Washington
Head, age 33
King-County, Washington · implied b. ~1907 — 3 household members
| Surname | Bradley |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Asst. Cashier |
| Industry | Co. Treas. Office |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Patrick Bradley (~0.92 confidence) and mother Olive Bradley (~0.92 confidence) and father Patrick Bradley (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Bradley
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Olive Bradley
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Patrick Bradley
b. ~1893
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Bradley
Head · 1940 · age 33 · b. ~1907 · Washington
★ 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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-04375-00405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Oliver Van Houten | 28 | Lodger | Clerk | Washington |
| 2 | Madeline Van Houten | 28 | Daughter | Stenographer | Washington |
| 3 | Louise Cooling | 1 | Daughter | — | Washington |
| 4 | Albert L. Zulrick | 34 | Head | Truck | Washington |
| 5 | Myrtle M. Zulrick | 31 | Wife | — | Washington |
| 6 | Lorraine Zulrick | 6 | Daughter | — | Washington |
| 7 | Pete Zulrick | 4 | Son | — | Washington |
| 8 | Helen Hanson | 27 | Daughter | Waitress | Oregon |
| 9 | Delores Hubbard | 11 | Daughter | — | Washington |
| 10 | Eleanor Cordola | 42 | Wife | — | Italy |
| 11 | Bernadette King | 21 | Lodger | Telephone Oper. | Wash |
| 12 | Maria Baker | 45 | Wife | Operator (Phone) | England |
| 13 | Jack Baker | 18 | Son | Messenger | Wash |
| 14 | Dora May Brenstetter | 16 | Daughter | — | Wash |
| 15 | Howard Knudson | 39 | Head | Salesman | Wisconsin |
| 16 | Kathryn Knudson | 33 | Wife | Comptometer Oper. | Iowa |
| 17 | Harold Roewell | 34 | Son | Truck Driver | Wisconsin |
| 18 | Marion Roewell | 29 | Daughter-in-law | — | Montana |
| 19 | Harold Jr. Roewell | 6 | Grandson | — | Wash |
| 20 | Margaret Clark | 22 | Sister-in-law | — | Canada-Eng |
| 21 | John A. Bradley THIS PERSON | 33 | Head | Asst. Cashier | Missouri |
| 22 | Fern Bradley | 30 | Wife | — | Wash |
| 23 | John F. Bradley | 1 | Son | — | Wash |
| 24 | James Fielder | 40 | Head | Seaman | California |
| 25 | A. J. Ruth | 42 | Head | Press Office | Wisconsin |
| 26 | Betty Ruth | 37 | Wife | — | Wisconsin |
| 27 | Louis Holland | 68 | Lodger | Landscape Gardener | Norway |
| 28 | Harry L. Chenoweth | 25 | Son | Civil Engineer | Washington |
| 29 | Ray H. Carlson | 37 | Lodger | Dry Belt Maker | Washington |
| 30 | James A. Kooly | 27 | Son | Teamster | Wash |
| 31 | Mary Kooly | 22 | Daughter-in-law | — | Canada-Eng |
| 32 | Jean A. Kooly | 2 | Granddaughter | — | Wash |
| 33 | Carol Ann Kooly | 1 | Granddaughter | — | Wash |
| 34 | Merton W. Douglas | 48 | Head | Foreman | Illinois |
| 35 | Frances Douglas | 56 | Wife | — | Wisconsin |
| 36 | Nilsen Einar | 40 | Head | Marine Engineer | Norway |
| 37 | Jacob Welgamot | 57 | Head | Chauffeur | Illinois |
| 38 | Charles Jr. Lane | 63 | Lodger | Nursery Man | Australia |
Pedigree Summary
John
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)