JW
John Warren — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this John Warren across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents William & F — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Warren |
| Given Name | John O |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Statistician |
| Industry | Insurance Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Statistician |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| F Warren | Head | — | 59 | ~1881 |
| Anna Eales | Other | — | 68 | ~1872 |
| John Warren | Son | — | 23 | ~1917 |
Census Appearances
1920
King, Washington
Son, age 5
King, Washington · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 13
King, Washington · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 23
King-County, Washington · implied b. ~1917 — 3 household members
| Surname | Warren |
| Given Name | John O |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Statistician |
| Industry | Insurance Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Warren across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Warren (~0.92 confidence) and father F Warren (~0.92 confidence) and mother Lula Warren (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Warren
b. ~1878
Source father
● Household
· direct · ~0.92
Father
F Warren
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Lula Warren
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Warren
Son · 1940 · age 23 · b. ~1917 · 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
33 people indexed on this census page (nara:1940:m-t0627-04378-00168)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrina G White | 72 | Head | — | Denmark |
| 6 | Henry Ragee | 56 | Head | Chief Engineer | Wisconsin |
| 7 | Clara G Ragee | 56 | Wife | — | Indiana |
| 8 | Rhoda Ragee | 26 | Daughter | — | Washington |
| 9 | Hal Henry Ragee | 20 | Son | — | Washington |
| 10 | Paul Lekukis | 72 | Head | — | Russia |
| 11 | Helen Lekukis | 67 | Wife | — | Russia |
| 12 | Isaac F Davis | 63 | Head | — | Ohio |
| 13 | Minnie M Davis | 49 | Wife | — | Kentucky |
| 14 | Robert Stiles | 31 | Son in law | Proprietor | Montana |
| 15 | Margaret V Stiles | 30 | Step daughter | Sales Clerk | Colorado |
| 16 | Veda L Stiles | 6 | Grand daughter | — | Washington |
| 18 | James V Patterson | 72 | Head | — | Scotland |
| 19 | James Jr Patterson | 28 | Son | — | Washington |
| 20 | Elvira Olsen | 54 | Housekeeper | Housekeeper | Denmark |
| 21 | Thomas Henry Lee | 54 | Head | Asst Accountant | England |
| 22 | Elizabeth Sayre Lee | 52 | Wife | — | England |
| 23 | Florence M B Lee | 24 | Daughter | Stenographer | Canada-English |
| 25 | Oliver Fuller | 63 | Head | Owner | Missouri |
| 26 | Nellie Fuller | 61 | Wife | — | Missouri |
| 27 | Thelma Halligan | 23 | Housekeeper | Housekeeper | North Dakota |
| 28 | Martha Broatman | 63 | Housekeeper | Housekeeper | Sweden |
| 29 | F Fisher Warren | 59 | Head | — | Missouri |
| 30 | John O Warren THIS PERSON | 23 | Son | Statistician | Washington |
| 31 | Anna Judd Eales | 68 | Lodger | Bookkeeper | Iowa |
| 32 | Eleanor M-Vay L'Abbe | 28 | Head | — | Washington |
| 33 | James L'Abbe | 4 | Son | — | Washington |
| 34 | George L'Abbe | 1 | Son | — | Washington |
| 35 | Florence Burney | 55 | Lodger | Housekeeper | Missouri |
| 36 | Peter H Votaw | 55 | Head | Colonel | Iowa |
| 37 | Esther Votaw | 46 | Wife | — | Washington |
| 38 | William H Redfield | 75 | Father in law | Owner | Massachusetts |
| 39 | Elizabeth F Watson | 52 | Head | Housekeeper | Missouri |
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)