HC
Harry Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Whitman-County, Washington
Our Model Tree links this Harry Cook across the 1920, 1930 and 1940 US Censuses in Whitman-County, Washington (XGBoost, ~Confirmed), with identified parents Ben & Bard — first a son (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Whitman-County, Washington |
| Surname | Cook |
| Given Name | Harry |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Precinct 34 Union |
| 1935 Residence (County) | Whitman |
| Additional Details | |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 28 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Laborer |
| Township / Ward | Precinct 34 Union |
| Est. Birth Year | ~1912 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Pearl Cook | Spouse | — | 57 | ~1883 |
| Harry Cook | Son | — | 28 | ~1912 |
| Ben Cook | Head | — | 66 | ~1874 |
Census Appearances
1920
Whitman, Washington
Son, age 7
Whitman, Washington · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Washington |
| Occupation | pupil |
| Industry | Grade school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Whitman, Washington
Son, age 18
Whitman, Washington · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Washington |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Whitman-County, Washington
Son, age 28
Whitman-County, Washington · implied b. ~1912 — 3 household members
| Surname | Cook |
| Given Name | Harry |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Precinct 34 Union |
| 1935 Residence (County) | Whitman |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 28 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Harry Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ben Cook (~0.92 confidence) and father Bard Cook (~0.92 confidence) and father Gard Cook (~0.92 confidence) and mother Pearl Cook (~0.92 confidence) and mother Pearl Cook (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ben Cook
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Bard Cook
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Gard Cook
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Pearl Cook
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Pearl Cook
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Cook
Son · 1940 · age 28 · b. ~1912 · 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 — Whitman-County, Washington
Open full size
1940 US Federal Census — Whitman-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04370-00470)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wanda Kay Potts | 1 | daughter | — | Washington |
| 42 | Jack S. Potts | 63 | Head | Operator | Ireland |
| 43 | Eva S. Potts | 51 | wife | None | Canada |
| 44 | John L. Potts | 28 | son | Teacher | Washington |
| 45 | Maxine D. Potts | 22 | daughter | Teacher | Washington |
| 46 | Louise A. Potts | 20 | daughter | Housework | Washington |
| 47 | Thomas J. Potts | 16 | son | New Worker | Washington |
| 48 | Harvey A. Potts | 12 | son | — | Washington |
| 49 | William G. Pitts | 31 | Head | Operator | Washington |
| 50 | Eloise Pitts | 23 | wife | None | Washington |
| 51 | James W. Pitts | 4 | son | — | Washington |
| 52 | Everett F. Nave | 34 | Head | Foreman | Idaho |
| 53 | Kathryn Nave | 33 | wife | None | Wisconsin |
| 54 | William S. Nave | 9 | son | — | Washington |
| 55 | Everett Jr. Nave | 8 | son | — | Washington |
| 56 | James Mills | 55 | servant | Farm | Oregon |
| 57 | Walter H. Dotson | 47 | Head | Operator | Missouri |
| 58 | Lillie Dotson | 42 | wife | None | Washington |
| 59 | Warren Dotson | 24 | son | Laborer | Oregon |
| 60 | John Dotson | 20 | son | Laborer | Washington |
| 61 | Everett Tuggle | 62 | Head | Operator | West Virginia |
| 62 | Ethel Tuggle | 49 | wife | None | Washington |
| 63 | Arthur Tuggle | 29 | son | Operator | Washington |
| 64 | Maxine Tuggle | 17 | daughter | New Worker | Washington |
| 65 | Doris Tuggle | 13 | daughter | — | Washington |
| 66 | James H. Bowen | 45 | Head | Operator | Virginia |
| 67 | Willard Bowen | 21 | son | Laborer | Washington |
| 68 | Merle Jean Bowen | 15 | daughter | — | Washington |
| 69 | George Mcfarland | 52 | servant | Laborer | Kansas |
| 70 | Ben D. Cook | 66 | Head | Operator | Iowa |
| 71 | Pearl Cook | 57 | wife | None | Washington |
| 72 | Harry Cook THIS PERSON | 28 | son | Laborer | Washington |
| 73 | Luther Harris | 47 | Head | Operator | Texas |
| 74 | Myrtle Harris | 44 | wife | None | Michigan |
| 75 | Velma Gibson | 21 | daughter | — | Washington |
| 76 | Gerald Gibson | 24 | son in law | Laborer | Washington |
| 77 | Jacqueline Gibson | 1 | granddaughter | — | Washington |
| 78 | Roy W. Book | 35 | Head | Operator | Washington |
| 79 | Loretta Book | 28 | wife | None | Canada |
| 80 | Lorraine Book | 2 | daughter | — | Washington |
Pedigree Summary
Harry
Gen 1 · 5 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)