DC
David Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this David Cook across the 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 8-person household.
Age 47
b. ~1893
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Cook |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Porter |
| Industry | Barber Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Porter |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1893 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Mark Cook | Son | — | 3 | ~1937 |
| William Cook | Son | — | 9 | ~1931 |
| Minerva Cook | Spouse | — | 36 | ~1904 |
| Eugene Cook | Son | — | 11 | ~1929 |
| Theodore Cook | Son | — | 6 | ~1934 |
| Lila Cook | Daughter | — | 5 | ~1935 |
| David Cook | Son | — | 8 | ~1932 |
| David Cook | Head | — | 47 | ~1893 |
Census Appearances
1930
King, Washington
Head, age 37
King, Washington · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | David L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 35 |
| Father's Birthplace | US |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
King-County, Washington
Head, age 47
King-County, Washington · implied b. ~1893 — 8 household members
| Surname | Cook |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Porter |
| Industry | Barber Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Cook
Head · 1940 · age 47 · b. ~1893 · Washington
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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
39 people indexed on this census page (nara:1940:m-t0627-04379-00592)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Abraham Angel | 53 | Head | Shoe Shiner | Rhodes |
| 42 | Esther Angel | 47 | Wife | — | Rhodes |
| 43 | Leo Angel | 23 | Son | New Worker | Washington |
| 44 | Lenore Angel | 21 | Daughter | Teacher | Washington |
| 45 | Solly Angel | 18 | Son | Salesman | Washington |
| 46 | Sarah Angel | 14 | Daughter | — | Washington |
| 47 | Sammy Angel | 11 | Son | — | Washington |
| 48 | Estella Marshall | 41 | Head | Laundress | Kansas |
| 49 | Beatrice Marshall | 15 | Daughter | — | Washington |
| 50 | James Marshall | 13 | Son | — | Washington |
| 51 | Sam Young | 70 | Head | Cook | England |
| 52 | Dora Young | 78 | Wife | — | Louisiana |
| 53 | Virginia Solomon | 62 | Head | — | Louisiana |
| 54 | Roy L. Anderson | 44 | Head | Rolling Machine | Washington |
| 55 | John H. Roby | 42 | Head | Gardener | Mississippi |
| 56 | Olga Roby | 41 | Wife | — | Mississippi |
| 57 | Alba H. Jones | 52 | Head | — | Georgia |
| 58 | Lila B. Jones | 46 | Wife | — | Georgia |
| 59 | Charles Thompson | 38 | Head | Porter | Tennessee |
| 60 | Robert E. Woods | 55 | Head | Attendant | United States |
| 61 | Effie Edna Woods | 55 | Wife | — | Connecticut |
| 62 | Gladys Edna Butler | 15 | Daughter | — | Washington |
| 63 | Anna Dopley | 53 | Head | — | Northern Ireland |
| 64 | Mary Dopley | 20 | Daughter | Bookkeeper | Massachusetts |
| 65 | Gene Dopley | 18 | Daughter | — | Massachusetts |
| 66 | John Mendelsohn | 62 | Head | Janitor | Turkey |
| 67 | Sadie Mendelsohn | 48 | Wife | — | Turkey |
| 68 | Herbert Mendelsohn | 18 | Son | — | Washington |
| 70 | James W. Gray | 71 | Head | — | Ohio |
| 71 | James Jr. Gray | 20 | Grandson | New Worker | Washington |
| 72 | Philip Thomas | 58 | Head | Hod Carrier | Arkansas |
| 73 | David Cook THIS PERSON | 47 | Head | Porter | Pennsylvania |
| 74 | Minerva Cook | 36 | Wife | — | Washington |
| 75 | Eugene Cook | 11 | Son | — | Washington |
| 76 | William Cook | 9 | Son | — | Washington |
| 77 | David Cook | 8 | Son | — | Washington |
| 78 | Theodore Cook | 6 | Son | — | Washington |
| 79 | Lila Cook | 5 | Daughter | — | Washington |
| 80 | Mark Cook | 3 | Son | — | Washington |
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)