HC
Harry Cook — 1930 US Census Record
Model Tree available1930 United States Federal Census · King, Washington
Our Model Tree links this Harry Cook across the 1920, 1930 and 1940 US Censuses in King, Washington (XGBoost, ~Confirmed), with identified parents Otis & Daisy — first a son (b.~1913), then head of a 4-person household.
Age 17
b. ~1913
Male
Son
Born: Washington
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | King, Washington |
| Surname | Cook |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Otto Cook | Head | — | 62 | ~1868 |
| Harry Cook | Son | — | 17 | ~1913 |
| Lillian Cook | Daughter | — | 15 | ~1915 |
| Daisy Cook | Other | — | 63 | ~1867 |
Census Appearances
1920
King, Washington
Son, age 6
King, Washington · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Wisconsin |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 17
King, Washington · implied b. ~1913 — 4 household members
| Surname | Cook |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Head, age 26
King-County, Washington · implied b. ~1914 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | H. Dick |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Salesman |
| Industry | Business Machines |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2786 |
| Highest Grade | C 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 Otis Cook (~0.92 confidence) and mother Daisy Cook (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Otis Cook
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Daisy Cook
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Cook
Son · 1930 · age 17 · b. ~1913 · Washington
★ You are viewing this record
Sibling
Lillian Cook
Sibling · 1930 · age 15
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
1930 US Federal Census — King, Washington
Open full size
1930 US Federal Census — King, Washington
Page Contents
28 people indexed on this census page (ia:1930:15thcensus2503unit:0272)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Thorson | 32 | Head | Salesman | Minnesota |
| 2 | Marie Thorson | 27 | Wife-H | — | Minnesota |
| 3 | Walter Jr. Thorson | 6 | Son | — | Minnesota |
| 4 | Robert L. Thorson | 4 | Son | — | Minnesota |
| 5 | Betty R. Thorson | 3 | Daughter | — | Minnesota |
| 6 | Catherine Thorson | 1 | Daughter | — | Washington |
| 7 | Mccormick | 53 | Head | Housekeeper | Massachusetts |
| 8 | Ruth Mccormick | 50 | Wife-H | Waitress | Kansas |
| 9 | Faith Mccormick | 23 | Son | Caretaker | Kansas |
| 10 | Dean Mccormick | 19 | Son | Manager | Kansas |
| 11 | Ruth Mccormick | 5 | Daughter | — | Kansas |
| 12 | Susie Shook | 50 | Head | Keeper | Hungary |
| 13 | Mary Shook | 26 | Daughter | — | Washington |
| 14 | Louise Shook | 25 | Daughter | Saleslady | Washington |
| 15 | John Shook | 24 | Son | — | Washington |
| 16 | Leonard Shook | 23 | Son | Laborer | Washington |
| 17 | Joseph H. Kessner | 40 | Head | Laborer | Minnesota |
| 18 | Lillian A. Kessner | 30 | Wife-H | Painter | Arkansas |
| 19 | Harold Kessner | 2 | Son | — | Washington |
| 20 | Otto Cook | 62 | Head | Baker | Massachusetts |
| 21 | Daisy Cook | 63 | Wife-H | — | Wisconsin |
| 22 | Harry Cook THIS PERSON | 17 | Son | — | Washington |
| 23 | Lillian Cook | 15 | Daughter | — | Washington |
| 24 | Harry Hodge | 51 | Head | Cementworker | Germany |
| 25 | Ethel Hodge | 47 | Wife-H | — | Nevada |
| 26 | Gerald Hodge | 25 | Son | Machinist | Montana |
| 27 | Joseph Kowalski | 52 | Head | Laborer | Poland |
| 28 | Elsa Kowalski | 43 | Wife-H | — | Germany |
Pedigree Summary
Harry + 1 sibling
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)