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Carl Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Carl Larson across the 1910, 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Louisa & Andrew — first a son (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Larson |
| Given Name | Carl Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Service Man |
| Industry | City Bureau of Water & Power |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 3360 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Service Man |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1903 |
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 Carl | Age | Birth yr |
|---|---|---|---|---|
| Myrtle Larson | Daughter | — | 33 | ~1907 |
| Carl Larson | Head | — | 72 | ~1868 |
| Carl Larson | Son | — | 37 | ~1903 |
| Martha Larson | Spouse | — | 63 | ~1877 |
Census Appearances
1910
Los Angeles, …
Son, age 9
Los Angeles, California · implied b. ~1901 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Carl H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Los Angeles, …
Son, age 18
Los Angeles, California · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 27
Los Angeles, California · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Carl H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Electrician |
| Industry | Gas & Elec. Corp. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 37
Los-Angeles-County, California · implied b. ~1903 — 4 household members
| Surname | Larson |
| Given Name | Carl Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Service Man |
| Industry | City Bureau of Water & Power |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 3360 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Carl Larson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Louisa Larson (~0.92 confidence) and father Andrew Larson (~0.92 confidence) and father Carl Larson (~0.92 confidence) and father Carl Larson (~0.92 confidence) and father Lars Larsen (~0.92 confidence) and mother Hulda Larson (~0.92 confidence) and mother Martha Larson (~0.92 confidence) and mother Sophia Larsen (~0.92 confidence). The pedigree spans 1 generation with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Louisa Larson
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
Andrew Larson
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Carl Larson
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Carl Larson
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Lars Larsen
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Hulda Larson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Martha Larson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Sophia Larsen
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Larson
Son · 1940 · age 37 · b. ~1903 · California
★ You are viewing this record
Sibling
Myrtle Larson
Sibling · 1940 · age 33
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00423-00266)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bettie G. Revellette | 47 | Head | Owner | Oklahoma |
| 42 | Frances Revellette | 27 | Daughter | Owner | Kansas |
| 44 | John Heidt | 70 | Head | — | Maryland |
| 45 | Katie Heidt | 62 | Wife | — | Maryland |
| 46 | Ruth I. Heidt | 16 | Daughter | — | California |
| 47 | Lester H. Cowie | 47 | Head | Foreman | Illinois |
| 48 | Florence M. Cowie | 45 | Wife | — | Ohio |
| 49 | Robert G. Cowie | 25 | Son | Shipping Clerk | Ohio |
| 50 | Carl J. Larson | 72 | Head | Tailoring | Sweden |
| 51 | Martha Larson | 63 | Wife | — | Sweden |
| 52 | Carl Herbert Larson THIS PERSON | 37 | Son | Service Man | California |
| 53 | Myrtle E. Larson | 33 | Daughter | Secretary | California |
| 54 | Leo V. Mumford | 53 | Head | Shipping Clerk | Texas |
| 55 | Gillie Mumford | 53 | Wife | — | Texas |
| 56 | Mallie B. Mumford | 29 | Daughter | Shop Clerk | Texas |
| 58 | Cecelia M. Swanson | 59 | Head | — | Sweden |
| 59 | Peter Lester Swanson | 28 | Son | Assembly | Wisconsin |
| 60 | Viola C. Swanson | 34 | Daughter | Comptometer Operator | Wisconsin |
| 61 | Walter S. Deniston | 43 | Head | Contractor | Nebraska |
| 62 | Helen B. Deniston | 36 | Wife | — | Idaho |
| 63 | Carl B. Doney | 43 | Lodger | Laborer | Ohio |
| 64 | Helen R. Hessel | 56 | Head | Embroidery | Ohio |
| 65 | William M. Hunter | 57 | Head | Salesman | Texas |
| 66 | Marie E. Hunter | 61 | Wife | — | Norway |
| 67 | Oscar G. Lasell | 62 | Head | Carpenter | Iowa |
| 68 | Martha F. Lasell | 62 | Wife | — | Iowa |
| 69 | Pauline R. Lasell | 21 | Daughter | Waitress | Iowa |
| 70 | Norman P. Mitchell | 31 | Head | Bookkeeper | California |
| 71 | Ellen A. Mitchell | 32 | Wife | Operator | Iowa |
| 72 | Marilyn S. Mitchell | 1 | Daughter | — | California |
| 73 | Carl W. Sisk | 44 | Head | Carpenter | Oregon |
| 74 | Pearl K. Sisk | 49 | Wife | — | Missouri |
| 75 | James W. Sisk | 25 | Son | Ice Skater | Arizona |
| 76 | Verna D. Gray | 43 | Head | Interviewer | Iowa |
| 77 | Britt H. Gray | 24 | Son | Photo Camera Mechanic | Iowa |
| 78 | Maud B. Hamilton | 67 | Mother | — | Missouri |
| 79 | Walter E. Mathewson | 59 | Head | — | Rhode Island |
| 80 | Erma E. Mathewson | 60 | Wife | — | Austria |
Pedigree Summary
Carl + 1 sibling
Gen 1 · 8 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)