RP
Robert Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this Robert Peterson across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 4-person household.
Age 55
b. ~1885
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Peterson |
| Given Name | Robert V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Seattle City |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 8 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Carpenter |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1885 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Peterson | Head | — | 55 | ~1885 |
| John Peterson | Other | — | 59 | ~1881 |
| Leroy Peterson | Son | — | 18 | ~1922 |
| Beda Peterson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
King, Washington
Head, age 36
King, Washington · implied b. ~1884 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Robert V |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1903 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
King, Washington
Head, age 46
King, Washington · implied b. ~1884 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 28 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
King-County, Washington
Head, age 55
King-County, Washington · implied b. ~1885 — 4 household members
| Surname | Peterson |
| Given Name | Robert V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Seattle City |
| Naturalization Status | Naturalized |
| Occupation | Carpenter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 8 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Robert Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Peterson
Head · 1940 · age 55 · b. ~1885 · 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
37 people indexed on this census page (nara:1940:m-t0627-04377-01057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | August Anderson | 68 | Head | No | Sweden |
| 42 | Samuel Clarke | 33 | Head | Engineer Civil | Washington |
| 43 | Margaret R. Clarke | 33 | Wife | — | Washington |
| 44 | Beverly Clarke | 6 | Daughter | — | Washington |
| 45 | Barbara Clarke | 5 | Daughter | — | Washington |
| 46 | Sam Jr. Clarke | 4 | Son | — | Washington |
| 47 | Letitia Clarke | 0 | Daughter | — | Washington |
| 48 | E. Rolland Mitchell | 45 | Head | Salesman | Virginia |
| 49 | E. Rolland Jr. Mitchell | 18 | Son | No | Washington |
| 50 | Edward E. Graff | 62 | Head | Salesman | New York |
| 51 | Christina Graff | 53 | Wife | No | New York |
| 52 | Emma Lindeman | 62 | Head | No | California |
| 53 | Alma Hink | 61 | Head | No | Germany |
| 55 | Robert V. Peterson THIS PERSON | 55 | Head | Carpenter | Sweden |
| 56 | Beda Peterson | 53 | Wife | No | Sweden |
| 57 | Leroy Peterson | 18 | Son | No | Washington |
| 58 | John Peterson | 59 | Uncle | No | Sweden |
| 59 | Anna Silene | 72 | Head | No | Sweden |
| 60 | Theodore Barr | 33 | Head | Salesman | S. Dakota |
| 61 | Doris Barr | 32 | Wife | No | Washington |
| 62 | Ivor Downey | 49 | Head | Zone Supervisor | North Dakota |
| 63 | Betty Downey | 24 | Daughter | Home Economist | Washington |
| 64 | Jean Downey | 22 | Daughter | Checker | Oregon |
| 65 | J. D. Bell | 33 | Head | Attorney | Ohio |
| 68 | E. Kenneth Rogers | 39 | Head | Radio Distributor | Ohio |
| 69 | Mary Rogers | 36 | Wife | Stenographer | Colorado |
| 70 | Jean Haff | 38 | Head | Stenographer | Nevada |
| 71 | Nanette Haff | 28 | Wife | No | Oregon |
| 72 | Kendall Haff | 8 | Son | — | California |
| 73 | Harry K. Bull | 39 | Head | Salesman | Pennsylvania |
| 74 | Constance Bull | 45 | Wife | No | Washington |
| 75 | Alfred Gleedman | 36 | Head | Salesman | Washington |
| 76 | Gretchen Gleedman | 37 | Wife | No | Washington |
| 77 | B. Alfred Lundstrom | 38 | Head | Window Cleaner | Sweden |
| 78 | Lucille S. Lundstrom | 42 | Wife | No | Washington |
| 79 | Evelyn J. Lundstrom | 8 | Daughter | — | Alaska |
| 80 | Carl Peterson | 41 | Head | Clerk | 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)