DC
David Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this David Cook across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Will & Wm — first a son (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Cook |
| Given Name | David E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Radio Repair |
| Industry | Radio Shop |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Radio Repair |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1913 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Philip Cook | Son | — | 25 | ~1915 |
| Stella Cook | Spouse | — | 55 | ~1885 |
| David Cook | Son | — | 27 | ~1913 |
| Ruth Cook | Daughter | — | 18 | ~1922 |
| Will Cook | Head | — | 60 | ~1880 |
| Warren Cook | Son | — | 31 | ~1909 |
Census Appearances
1920
King, Washington
Son, age 7
King, Washington · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | David C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
King, Washington
Son, age 17
King, Washington · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | David L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Loader |
| Industry | Supply Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
King-County, Washington
Son, age 27
King-County, Washington · implied b. ~1913 — 6 household members
| Surname | Cook |
| Given Name | David E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Radio Repair |
| Industry | Radio Shop |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 David Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Will Cook (~0.92 confidence) and father Wm Cook (~0.92 confidence) and mother Stella Cook (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Will Cook
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Wm Cook
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Stella Cook
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Cook
Son · 1940 · age 27 · b. ~1913 · Washington
★ You are viewing this record
Sibling
Ruth Cook
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Cook
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Cook
Sibling · 1940 · age 31
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04374-00904)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | August J. Fauburg | 49 | Head | Foreman | Sweden |
| 2 | Beda Fauburg | 47 | Wife | — | Sweden |
| 3 | Bertil A. Fauburg | 25 | Son | Legal Business | Same place |
| 4 | Phyllis Fauburg | 16 | Daughter | — | Washington |
| 5 | Albert L. Hale | 37 | Head | Alley Man | Massachusetts |
| 6 | Loretta M. Hale | 34 | Wife | — | Massachusetts |
| 7 | Phyllis B. Hale | 9 | Daughter | — | Massachusetts |
| 8 | Aldrola A. Hale | 3 | Daughter | — | Massachusetts |
| 9 | Arthur A. Johnson | 44 | Head | Janitor | Sweden |
| 10 | Annette Johnson | 46 | Wife | — | Sweden |
| 11 | Roy A. Johnson | 23 | Son | Assistant | Washington |
| 12 | Mildred Johnson | 20 | Daughter | Nurse | Washington |
| 13 | Carol E. Johnson | 9 | Daughter | — | Washington |
| 14 | George Pagnani | 56 | Head | Retail Clerk | North Dakota |
| 15 | Julia Pagnani | 44 | Wife | Seamstress | Iowa |
| 16 | Marvel Pagnani | 22 | Daughter | Secretary | Washington |
| 17 | Albert Pagnani | 21 | Son | Computer Helper | Washington |
| 18 | George H. Mitten | 70 | Head | — | Massachusetts |
| 19 | Laura Mitten | 70 | Wife | — | Ohio |
| 20 | Will W. Cook | 60 | Head | Salesman | Wisconsin |
| 21 | Stella C. Cook | 55 | Wife | — | Wisconsin |
| 22 | Warren C. Cook | 31 | Son | Farm Laborer | Wisconsin |
| 23 | David E. Cook THIS PERSON | 27 | Son | Radio Repair | Oregon |
| 24 | Philip L. Cook | 25 | Son | Painting | Oregon |
| 25 | Ruth L. Cook | 18 | Daughter | — | Washington |
| 26 | Dorothy Stovall | 44 | Head | — | Washington |
| 27 | Glen Stovall | 11 | Son | — | Washington |
| 28 | Theodore Stovall | 5 | Son | — | Washington |
| 29 | John B. Mclean | 60 | Head | Watchman | Iowa |
| 30 | Mary Mclean | 52 | Wife | — | Indiana |
| 31 | Robert Mclean | 8 | Son | — | Oregon |
| 32 | Herbert Cunningham | 40 | Head | City Salesman | Nebraska |
| 33 | Edna Cunningham | 41 | Wife | — | Nebraska |
| 34 | William Cunningham | 19 | Son | — | Nebraska |
| 35 | Bettie Cunningham | 14 | Daughter | — | Nebraska |
| 36 | Peder Pedersen | 50 | Head | Common Laborer | Norway |
| 37 | Jessie Pedersen | 50 | Wife | — | Norway |
| 38 | Philip Pedersen | 19 | Son | Common Laborer | Washington |
| 39 | Beatrice Pedersen | 17 | Daughter | — | Washington |
| 40 | John W. Harrington | 58 | Head | Miner | Ireland |
Pedigree Summary
David + 3 siblings
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)