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Oscar Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grays-Harbor-County, Washington
Our Model Tree links this Oscar Larson across the 1920, 1930 and 1940 US Censuses in Grays-Harbor-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 4-person household.
Age 61
b. ~1879
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grays-Harbor-County, Washington |
| Surname | Larson |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Aberdeen city |
| 1935 Residence (County) | Grays Harbor |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | salesman |
| Industry | clothing |
| Class of Worker | OA |
| Hours Worked | 56 |
| Income (1939) | 1320 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Salesman |
| Township / Ward | Aberdeen City |
| Est. Birth Year | ~1879 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Florence Larson | Spouse | — | 45 | ~1895 |
| Ruth Larson | Daughter | — | 21 | ~1919 |
| Oscar Larson | Head | — | 61 | ~1879 |
| Alice Larson | Daughter | — | 19 | ~1921 |
Census Appearances
1920
Grays Harbor, …
Other, age 37
Grays Harbor, Washington · implied b. ~1883 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Oscar A. |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1899 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Broker |
| Industry | Merchandise |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1911 |
| Birthplace (normalized) | sweden |
1930
Grays Harbor, …
Head, age 48
Grays Harbor, Washington · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 33 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Merchant |
| Industry | Dry Goods |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Grays-Harbor-County, Washington
Head, age 61
Grays-Harbor-County, Washington · implied b. ~1879 — 4 household members
| Surname | Larson |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Aberdeen city |
| 1935 Residence (County) | Grays Harbor |
| Naturalization Status | Naturalized |
| Occupation | salesman |
| Industry | clothing |
| Class of Worker | OA |
| Hours Worked | 56 |
| Income (1939) | 1320 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| 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 Oscar Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Oscar Larson
Head · 1940 · age 61 · b. ~1879 · 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 — Grays-Harbor-County, Washington
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1940 US Federal Census — Grays-Harbor-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04340-00151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura Johnson | 20 | Daughter | Clerk | Washington |
| 2 | Malvern Winslow | 21 | Head | Laborer | Washington |
| 3 | Marylouise Winslow | 20 | Wife | — | Washington |
| 4 | Oscar A. Larson THIS PERSON | 61 | Head | Salesman | Sweden |
| 5 | Florence M. Larson | 45 | Wife | — | Minnesota |
| 6 | Ruth F. Larson | 21 | Daughter | Salesman | Washington |
| 7 | Alice J. Larson | 19 | Daughter | Stenograph | Washington |
| 8 | Harold Halverson | 26 | Head | Laborer | N. Dakota |
| 9 | Edith Halverson | 21 | Wife | — | Washington |
| 10 | Arthur Elhart | 30 | Head | Office Manager | Washington |
| 11 | Agnes Elhart | 25 | Wife | — | Montana |
| 12 | Harry Elhart | 2 | Son | — | Washington |
| 13 | George P. Smythie | 42 | Head | Laborer | Washington |
| 14 | Elizabeth Smythie | 37 | Wife | Laborer | Switzerland |
| 15 | George Smythie | 15 | Son | — | Washington |
| 16 | Annie Smythie | 15 | Daughter | — | Washington |
| 17 | Robert Smythie | 13 | Son | — | Washington |
| 18 | Josephine Lehto | 69 | Head | — | Finland |
| 19 | Gus Lehto | 42 | Son | Laborer | Finland |
| 20 | Ann Lehto | 23 | Daughter | Housekeeper | Washington |
| 21 | Robert Matson | 72 | Head | — | Germany |
| 22 | Oliver G. Vines | 66 | Head | Laborer | Georgia |
| 23 | Ella S. Vines | 57 | Wife | — | Texas |
| 24 | Orlando Vines | 29 | Son | Painter | Oregon |
| 25 | Darwin Vines | 24 | Son | Washer | Washington |
| 26 | — | None | — | — | — |
| 27 | Emma Sautio | 57 | Head | — | Finland |
| 28 | Sylvia Sautio | 25 | Daughter | Clerk | Washington |
| 29 | John Potran | 56 | Lodger | Logger | Finland |
| 30 | Hattie Vitikka | 46 | Head | Housekeeper | Finland |
| 31 | Violet Vitikka | 25 | Daughter | — | Washington |
| 32 | A. Hanninen | 60 | Lodger | Laborer | Finland |
| 33 | Clinton Merrill | 58 | Head | Logger | Minnesota |
| 34 | Grace E. Merrill | 62 | Wife | — | California |
| 35 | Stanley Reek | 34 | Head | Laborer | Iowa |
| 36 | Ruth Reek | 36 | Wife | — | Nebraska |
| 37 | Sherian Kay Reek | 2 | Daughter | — | Iowa |
| 38 | Harold Reek | 1 | Son | — | Iowa |
| 39 | Eugene Patton | 28 | Head | Financial Secretary | Washington |
| 40 | Aaltje Patton | 24 | Wife | — | Montana |
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)