HP
Harold Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Harold Peterson across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Amanda & Joseph — first a head (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Kent |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Seed Salesman |
| Industry | Wrong |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Seed Salesman |
| Township / Ward | Kent City |
| Est. Birth Year | ~1911 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Velma Peterson | Spouse | — | 27 | ~1913 |
| Kenneth Peterson | Son | — | 1 | ~1939 |
| Harold Peterson | Head | — | 29 | ~1911 |
Census Appearances
1920
King, Washington
Son, age 11
King, Washington · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 19
King, Washington · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Harold B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Head, age 29
King-County, Washington · implied b. ~1911 — 3 household members
| Surname | Peterson |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Kent |
| 1935 Residence (County) | King |
| Occupation | Seed Salesman |
| Industry | Wrong |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Washington |
| 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 Harold Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Amanda Peterson (~0.92 confidence) and father Joseph Peterson (~0.92 confidence) and father Joseph Peterson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Amanda Peterson
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Joseph Peterson
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Joseph Peterson
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harold Peterson
Head · 1940 · age 29 · b. ~1911 · 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
40 people indexed on this census page (nara:1940:m-t0627-04344-00952)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leo Veeder | 41 | Head | Carpenter | So Dakota |
| 2 | Lenora Veeder | 40 | Wife | — | So Dakota |
| 3 | David Adkins | 60 | Head | Plasterer | Ohio |
| 4 | Lillie Adkins | 57 | Wife | Waitress | W. Virginia |
| 5 | Russell Raymond | 28 | Head | — | Minnesota |
| 6 | Gladys Raymond | 22 | Wife | — | Washington |
| 7 | Russell Raymond | 5 | Son | — | Washington |
| 8 | Harold Peterson THIS PERSON | 29 | Head | Seed Salesman | Washington |
| 9 | Velma Peterson | 27 | Wife | — | Kansas |
| 10 | Kenneth Peterson | 1 | Son | — | Washington |
| 11 | Forrest H. Reynolds | 49 | Head | Plummer | Iowa |
| 12 | Mabel A. Reynolds | 48 | Wife | — | So Dakota |
| 13 | William Reynolds | 22 | Son | — | Washington |
| 14 | Dorothy Reynolds | 16 | Daughter | — | Washington |
| 15 | Forrest A. Reynolds | 25 | Head | Receiver | Washington |
| 16 | Lillian Reynolds | 19 | Wife | — | Washington |
| 17 | Claudia Reynolds | 1 | Daughter | — | Washington |
| 18 | Stanley Irvin | 40 | Head | Accountant | Canada-French |
| 19 | Jeanie Irvin | 33 | Wife | — | Oregon |
| 20 | Stanley C. Irvin | 19 | Son | Laborer | Washington |
| 21 | Lester A. Cook | 63 | Head | Store Proprietor | Illinois |
| 22 | Ida M. Cook | 85 | Mother | — | Wisconsin |
| 23 | Edith V. Merritt | 65 | Sister | Assistant | Illinois |
| 24 | William Mccreedy | 55 | Head | Proprietor | England |
| 25 | Eugenia Mccreedy | 55 | Wife | Assistant | Minnesota |
| 26 | Claude Bowen | 51 | Head | Laborer | Illinois |
| 27 | Lillybelle Bowen | 51 | Wife | — | Ohio |
| 28 | Claude Holding | 56 | Head | Watchman | England |
| 29 | Rachel Holding | 55 | Wife | Nurse | England |
| 30 | Arthur Holding | 24 | Son | Clerk | Washington |
| 31 | James Campbell | 57 | Head | Painter | Illinois |
| 32 | Sarah Campbell | 57 | Wife | — | Kansas |
| 33 | James Engle | 31 | Head | Clerk | Washington |
| 34 | Elenor Engle | 29 | Wife | — | So Dakota |
| 35 | Kenneth Engle | 8 | Son | — | Washington |
| 36 | Joan Engle | 5 | Daughter | — | California |
| 37 | Albert Painter | 21 | Lodger | Bank Teller | Washington |
| 38 | Gordon Smith | 32 | Head | Clerk | Washington |
| 39 | Helen Smith | 31 | Wife | — | Washington |
| 40 | Jean Smith | 9 | Daughter | — | Washington |
Pedigree Summary
Harold
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)