RL
Robert Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kitsap-County, Washington
Our Model Tree links this Robert Larson across the 1920, 1930 and 1940 US Censuses in Kitsap-County, Washington (XGBoost, ~Confirmed), with identified parents Oscar & Florence — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kitsap-County, Washington |
| Surname | Larson |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Bremerton City |
| 1935 Residence (County) | Kitsap |
| Additional Details | |
| Occupation | Student |
| Industry | University |
| Income (1939) | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Student |
| Township / Ward | Bremerton City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Florence Larson | Spouse | — | 49 | ~1891 |
| Robert Larson | Son | — | 21 | ~1919 |
| Adrienne Larson | Daughter | — | 15 | ~1925 |
| Dorothy Larson | Daughter | — | 19 | ~1921 |
| Oscar Larson | Head | — | 52 | ~1888 |
| Kenneth Larson | Son | — | 13 | ~1927 |
Census Appearances
1920
Kitsap, Washington
Son, age 1
Kitsap, Washington · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Kitsap, Washington
Son, age 11
Kitsap, Washington · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Age at First Marriage | 11 |
| Father's Birthplace | No. Dakota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Kitsap-County, Washington
Son, age 21
Kitsap-County, Washington · implied b. ~1919 — 6 household members
| Surname | Larson |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Bremerton City |
| 1935 Residence (County) | Kitsap |
| Occupation | Student |
| Industry | University |
| Income (1939) | 0 |
| Highest Grade | C 2 |
| 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 Robert Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oscar Larson (~0.92 confidence) and mother Florence Larson (~0.92 confidence) and father Oscar Larson (~0.92 confidence) and mother Florence Larson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Larson
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Florence Larson
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Oscar Larson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Florence Larson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Larson
Son · 1940 · age 21 · b. ~1919 · Washington
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Sibling
Dorothy Larson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adrienne Larson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Larson
Sibling · 1940 · age 13
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
1940 US Federal Census — Kitsap-County, Washington
Open full size
1940 US Federal Census — Kitsap-County, Washington
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04347-00318)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nola M Ames | 15 | Daughter | Student | Washington |
| 42 | Rhea D Laing | 43 | Head | Machinist | Washington |
| 43 | Alice B Laing | 41 | Wife | Housewife | Michigan |
| 44 | Virginia Laing | 18 | Daughter | Student | Washington |
| 46 | John H Christensen | 54 | Head | Helper Cadmium | Ohio |
| 47 | Theresa Christensen | 53 | Wife | Housewife | California |
| 48 | Frank Holmes | 39 | Head | Civil Engineer | Indiana |
| 49 | Elizabeth Holmes | 32 | Wife | Housewife | California |
| 50 | Walter Holmes | 5 | Son | — | California |
| 51 | Clarence B Shovar | 46 | Head | Mechanic | Ohio |
| 52 | Luella Shovar | 45 | Wife | Housewife | Ohio |
| 53 | Elias Anderson | 33 | Head | Proprietor | Washington |
| 54 | Bertha Anderson | 30 | Wife | Proprietor Clerk | North Dakota |
| 55 | Lorraine Anderson | 9 | Daughter | — | Washington |
| 56 | Ronald Anderson | 5 | Son | — | Washington |
| 57 | Robert Anderson | 3 | Son | — | Washington |
| 58 | Jacob Bright | 43 | Head | Proprietor | California |
| 59 | Harriett Bright | 40 | Wife | Housewife | Oregon |
| 60 | Robert Bright | 18 | Son | Student | Washington |
| 61 | Ronald Bright | 6 | Son | — | Washington |
| 62 | Oscar A Larson | 52 | Head | Pipe Fitter | North Dakota |
| 63 | Florence G Larson | 49 | Wife | Housewife | Minnesota |
| 64 | Robert A Larson THIS PERSON | 21 | Son | Student | Washington |
| 65 | Dorothy K Larson | 19 | Daughter | Student | Washington |
| 66 | Adrienne R Larson | 15 | Daughter | Student | Washington |
| 67 | Kenneth E Larson | 13 | Son | — | Washington |
| 68 | William W Long | 57 | Head | Rigger | Minnesota |
| 69 | Matilda Long | 53 | Wife | Housewife | Minnesota |
| 70 | Helen L Long | 19 | Daughter | Student | Washington |
| 71 | William Jr Long | 16 | Son | Student | Washington |
| 72 | Nadine N Long | 10 | Daughter | — | Washington |
| 73 | Jay Miller | 29 | Head | Clerk | Idaho |
| 74 | Laura Miller | 25 | Wife | Bookkeeper | Oregon |
| 75 | Gerald L Jacobs | 39 | Head | Pipe Fitter | Illinois |
| 76 | Jacqueline Jacobs | 37 | Wife | Housewife | Washington |
| 77 | Stephen Jacobs | 1 | Son | — | Washington |
| 78 | Walter Barth | 32 | Head | Sheetmetal | Washington |
| 79 | Jeanett Barth | 30 | Wife | Housewife | New York |
| 80 | Walter E Barth | 6 | Son | — | Washington |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 4 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)