RL
Robert Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clatsop-County, Oregon
Our Model Tree links this Robert Larson across the 1920, 1930 and 1940 US Censuses in Clatsop-County, Oregon (XGBoost, ~Confirmed), with identified parents August & Josephine — first a son (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clatsop-County, Oregon |
| Surname | Larson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Chadwell Precinct |
| 1935 Residence (County) | Clatsop |
| Additional Details | |
| Occupation | Fisherman |
| Industry | Fishing |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Fisherman |
| Township / Ward | Chadwell Precinct |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Hallas Larson | Son | — | 22 | ~1918 |
| Robert Larson | Son | — | 30 | ~1910 |
| Josephine Larson | Spouse | — | 53 | ~1887 |
| August Larson | Head | — | 64 | ~1876 |
Census Appearances
1920
Clatsop, Oregon
Son, age 9
Clatsop, Oregon · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Clatsop, Oregon
Son, age 19
Clatsop, Oregon · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Oregon |
| Occupation | Merchant |
| Industry | Retail Service Sta. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Clatsop-County, Oregon
Son, age 30
Clatsop-County, Oregon · implied b. ~1910 — 4 household members
| Surname | Larson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Chadwell Precinct |
| 1935 Residence (County) | Clatsop |
| Occupation | Fisherman |
| Industry | Fishing |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 August Larson (~0.92 confidence) and mother Josephine Larson (~0.92 confidence) and father Eugene Larson (~0.92 confidence) and mother Anna Larson (~0.92 confidence) and mother Josephine Larson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Larson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Josephine Larson
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
Eugene Larson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Anna Larson
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Josephine Larson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Larson
Son · 1940 · age 30 · b. ~1910 · Oregon
★ You are viewing this record
Sibling
Hallas Larson
Sibling · 1940 · age 22
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 — Clatsop-County, Oregon
Open full size
1940 US Federal Census — Clatsop-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03356-00369)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hilda K. Oman | 66 | Wife | — | Finland |
| 2 | George Albin Oman | 37 | Son | Farmer | Oregon |
| 3 | Fred Boren | 55 | Hired man | Farm Hand | Finland |
| 4 | Eino E. Winters | 29 | Head | Boom Man | Oregon |
| 5 | Melba L. Winters | 23 | Wife | — | Oregon |
| 6 | Harlyn Gene Winters | 3 | Son | — | Oregon |
| 7 | Harry E. Nicholson | 48 | Head | Salesman | Pennsylvania |
| 8 | Edith M. Nicholson | 44 | Wife | — | Washington |
| 9 | Nina C. Nicholson | 23 | Daughter | — | Oregon |
| 10 | Lila May Nicholson | 14 | Daughter | — | Oregon |
| 11 | John D. Jensen | 46 | Head | Engineer | Oregon |
| 12 | Elma N. Jensen | 43 | Wife | — | Oregon |
| 13 | Viola E. Jensen | 24 | Daughter | Teacher | Oregon |
| 14 | Elmer E. Hendrickson | 32 | Head | Truck Driver | Oregon |
| 15 | Louise E. Hendrickson | 31 | Wife | — | Michigan |
| 16 | Delores Jean Hendrickson | 12 | Daughter | — | Oregon |
| 17 | Elias Hendrickson | 66 | Head | Farmer | Finland |
| 18 | Alexander Pietala | 64 | Head | Farmer | Finland |
| 19 | Hilma S. Pietala | 57 | Wife | — | Finland |
| 20 | Irene E. Pietala | 20 | Daughter | Stenographer | Oregon |
| 21 | Eddie M. Lampi | 41 | Son-in-law | Skipper | Oregon |
| 22 | Alice S. Lampi | 39 | Daughter | — | Oregon |
| 23 | Kenneth E. Lampi | 17 | Son | — | Oregon |
| 24 | August Larson | 64 | Head | Dry Kiln | Sweden |
| 25 | Josephine J. Larson | 53 | Wife | — | Oregon |
| 26 | Robert J. Larson THIS PERSON | 30 | Son | Fisherman | Oregon |
| 27 | Hallas E. Larson | 22 | Son | Measurer | Oregon |
| 28 | Mattie J. Sexton | 61 | Head | — | Missouri |
| 29 | Harlow C. Whitehouse | 57 | Head | Log Scaler | Wisconsin |
| 30 | Clara A. Whitehouse | 53 | Wife | — | North Dakota |
| 31 | Paul J. Lund | 51 | Head | Butcher | Finland |
| 32 | Sigue J. Lund | 48 | Wife | — | Finland |
| 33 | Andrew A. Larson | 31 | Head | Fireman | Oregon |
| 34 | Virginia E. Larson | 40 | Wife | Nurse | Oregon |
| 35 | Beverly J. Larson | 7 | Daughter | — | Oregon |
| 36 | Roger L. Larson | 5 | Son | — | Oregon |
| 37 | Albert E. Schulz | 44 | Head | Inspector | Washington |
| 38 | Chrystle E. Schulz | 39 | Wife | — | Washington |
| 39 | Alice Jean Schulz | 12 | Daughter | — | Washington |
| 40 | Marilyn R. Schulz | 10 | Daughter | — | Washington |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 5 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)