AL
Arthur Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Yuma-County, Colorado
Our Model Tree links this Arthur Larson across the 1920, 1930 and 1940 US Censuses in Yuma-County, Colorado (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Yuma-County, Colorado |
| Surname | Larson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Abbott Precinct |
| 1935 Residence (County) | Yuma |
| Additional Details | |
| Occupation | Farmer |
| Industry | agriculture |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Farmer |
| Township / Ward | Abbott Precinct |
| Est. Birth Year | ~1914 |
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 Arthur | Age | Birth yr |
|---|---|---|---|---|
| Arthur Larson | Son | — | 26 | ~1914 |
| John Larson | Spouse | — | 63 | ~1877 |
| Sophia Larson | Head | — | 57 | ~1883 |
Census Appearances
1920
Yuma, Colorado
Son, age 7
Yuma, Colorado · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Arthur C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Yuma, Colorado
Son, age 17
Yuma, Colorado · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Arthur C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Yuma-County, Colorado
Son, age 26
Yuma-County, Colorado · implied b. ~1914 — 3 household members
| Surname | Larson |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Abbott Precinct |
| 1935 Residence (County) | Yuma |
| Occupation | Farmer |
| Industry | agriculture |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Arthur Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Larson (~0.92 confidence) and father John Larson (~0.92 confidence) and father John Larsen (~0.92 confidence) and mother Sophia Larson (~0.92 confidence) and mother Sofie Larson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Larson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
John Larson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
John Larsen
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Sophia Larson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Sofie Larson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Larson
Son · 1940 · age 26 · b. ~1914 · Colorado
★ 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 — Yuma-County, Colorado
Open full size
1940 US Federal Census — Yuma-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00483-00307)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sophia Larson | 57 | Head | — | Sweden |
| 2 | John Larson | 63 | Husband | — | Sweden |
| 3 | Arthur Larson THIS PERSON | 26 | Son | Farmer | Colorado |
| 4 | Archie Runkle | 25 | Head | Farmer | Kansas |
| 5 | Alberta Gailey | 66 | Mother | — | Iowa |
| 6 | N. Robert Fletcher | 45 | Head | Rancher | Iowa |
| 7 | J. Mary Fletcher | 39 | Wife | — | Pennsylvania |
| 8 | G. Mark Crocker | 45 | Head | Farmer | Nebraska |
| 9 | M. Mauree Crocker | 45 | Wife | — | Iowa |
| 10 | Walter Wolff | 52 | Head | Farmer | Illinois |
| 11 | Anna Wolff | 54 | Wife | — | Michigan |
| 12 | Milton Wolff | 28 | Son | Engineer | Iowa |
| 13 | Florence Wurtsmith | 60 | Head | — | Iowa |
| 14 | C. Robert Wurtsmith | 25 | Son | Farm Laborer | Iowa |
| 15 | M. Fern Wurtsmith | 19 | Daughter | — | Iowa |
| 16 | Edward Wurtsmith | 35 | Head | Farmer | Iowa |
| 17 | Martha Wurtsmith | 36 | Wife | — | Sweden |
| 18 | Catherine Linder | 22 | Boarder | Teacher | Colorado |
| 19 | U. Fred Pierson | 21 | Head | Farmer | Oklahoma |
| 20 | E. Mauree Pierson | 22 | Wife | — | Oklahoma |
| 21 | A. Mauree Pierson | 1 | Daughter | — | Colorado |
| 22 | F. Leon Wilson | 21 | Head | Farmer | Colorado |
| 23 | S. Lucile Wilson | 23 | Wife | — | Iowa |
| 24 | H. B. Clauson | 76 | Head | Retired Farmer | Illinois |
| 25 | A. Rosa Clauson | 72 | Wife | — | Illinois |
| 26 | A. E. Bennett | 68 | Head | Farmer | Kansas |
| 27 | E. Clinton Bennett | 33 | Son | Farm Laborer | Kansas |
| 28 | A. Leo Bennett | 26 | Son | Farm Laborer | Kansas |
| 29 | E. Reva Bennett | 20 | Daughter | — | Colorado |
| 30 | J. Mary Bennett | 18 | Daughter | — | Colorado |
| 31 | G. Herbert Hilbert | 25 | Head | Farmer | Missouri |
| 32 | W. Irma Hilbert | 18 | Wife | — | Colorado |
| 33 | W. Fred Foster | 72 | Head | Farmer | Iowa |
| 34 | Millie Foster | 64 | Wife | — | Nebraska |
| 35 | Anna Q. Hilbert | 54 | Head | — | Missouri |
| 36 | S. Ronald Hilbert | 15 | Son | Farm Laborer | Missouri |
| 37 | I. Mary Pearson | 61 | Boarder | — | Missouri |
| 38 | S. John Jackson | 56 | Head | Farming | Missouri |
| 39 | S. Bulah Jackson | 54 | Wife | — | Kansas |
| 40 | E. Paul Graul | 51 | Head | Farmer | Nebraska |
Pedigree Summary
Arthur
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)