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Robert Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cass-County, North Dakota
Our Model Tree links this Robert Larson across the 1920, 1930 and 1940 US Censuses in Cass-County, North Dakota (XGBoost, ~Confirmed), with identified parents Carl & Earl — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, North Dakota |
| Surname | Larson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Gardner |
| Industry | Greenhouse |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Gardner |
| Township / Ward | Fargo City |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Elara Larson | Spouse | — | 52 | ~1888 |
| George Larson | Other | — | 60 | ~1880 |
| J Larson | Other | — | 56 | ~1884 |
| Robert Larson | Son | — | 24 | ~1916 |
| Earl Larson | Head | — | 59 | ~1881 |
| J Larson | Other | — | 86 | ~1854 |
Census Appearances
1920
Cass, North …
Other, age 4
Cass, North Dakota · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Robert E. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Minnesota |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Cass, North …
Son, age 14
Cass, North Dakota · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Cass-County, North …
Son, age 24
Cass-County, North Dakota · implied b. ~1916 — 6 household members
| Surname | Larson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Occupation | Gardner |
| Industry | Greenhouse |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Carl Larson (~0.92 confidence) and father Earl Larson (~0.92 confidence) and mother Elara Larson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Larson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Earl Larson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Elara Larson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Larson
Son · 1940 · age 24 · b. ~1916 · North Dakota
★ 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 — Cass-County, North Dakota
Open full size
1940 US Federal Census — Cass-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02997-00389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Norman Tenneson | 41 | Head | Lawyer | North Dakota |
| 42 | Lenore Tenneson | 34 | Wife | — | Illinois |
| 43 | Jean W Tenneson | 9 | Daughter | — | North Dakota |
| 44 | Virginia Tenneson | 5 | Daughter | — | North Dakota |
| 45 | Guy F. Graham | 70 | Partner | Gardner | Iowa |
| 46 | Earl Swanson | 39 | Head | Wholesale | Minnesota |
| 47 | Viola Swanson | 40 | Wife | — | Wisconsin |
| 48 | Earl Jr Swanson | 5 | Son | — | North Dakota |
| 49 | Fred Bohnsack | 50 | Head | Painter | North Dakota |
| 50 | Viola Bohnsack | 35 | Wife | — | North Dakota |
| 51 | Joyce Bohnsack | 11 | Daughter | — | North Dakota |
| 52 | Jean M Bohnsack | 8 | Daughter | — | North Dakota |
| 53 | Fred Bohnsack | 7 | Son | — | North Dakota |
| 54 | Otto Haakenstad | 38 | Head | Lawyer | Norway |
| 55 | Lillian Haakenstad | 39 | Wife | — | Minnesota |
| 56 | Dale L. Haakenstad | 12 | Son | — | North Dakota |
| 57 | Edith Haakenstad | 8 | Daughter | — | North Dakota |
| 58 | Alexious J. Larson | 54 | Head | Mail Clerk | Minnesota |
| 59 | Anna Larson | 49 | Wife | — | Minnesota |
| 60 | William Larson | 20 | Son | — | Minnesota |
| 61 | Elizabeth Larson | 14 | Daughter | — | Minnesota |
| 62 | Norma Larson | 13 | Niece | — | Minnesota |
| 63 | Earl Larson | 59 | Head | Parts Man | Sweden |
| 64 | Elara Larson | 52 | Wife | Parts Man | Minnesota |
| 65 | Robert Larson THIS PERSON | 24 | Son | Gardner | North Dakota |
| 66 | George Larson | 60 | Brother | Gardner | Sweden |
| 67 | J. William Larson | 56 | Brother | — | Minnesota |
| 68 | J. Fred Larson | 86 | Father | — | Denmark |
| 69 | Jacob H. Goldberg | 42 | Head | Manager | Minnesota |
| 70 | Frances Goldberg | 39 | Wife | — | North Dakota |
| 71 | Richard Goldberg | 12 | Son | — | North Dakota |
| 72 | Lois Goldberg | 8 | Daughter | — | North Dakota |
| 73 | Esther Johnson | 25 | Maid | Maid | North Dakota |
| 74 | Liana Monsen | 22 | Maid | Maid | North Dakota |
| 75 | Hugo Backenheimer | 69 | Head | Finance Co. | Germany |
| 76 | Henrietta Backenheimer | 65 | Wife | — | Germany |
| 77 | James Backenheimer | 6 | Son | — | North Dakota |
| 78 | Samuel L. Chesley | 51 | Head | Manager | North Dakota |
| 79 | Louise Chesley | 40 | Wife | — | North Dakota |
| 80 | James Chesley | 6 | Son | — | North Dakota |
Pedigree Summary
Robert
Gen 1 · 3 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)