RL
Robert Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nicollet-County, Minnesota
Our Model Tree links this Robert Larson across the 1930 and 1940 US Censuses in Nicollet-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Nicollet-County, Minnesota |
| Surname | Larson |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Peter |
| 1935 Residence (County) | Nicollet |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Oshawa Twp |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| J Larson | Head | — | 49 | ~1891 |
| Muriel Larson | Daughter | — | 18 | ~1922 |
| Roger Larson | Son | — | 15 | ~1925 |
| Curtis Larson | Son | — | 19 | ~1921 |
| John Larson | Son | — | 12 | ~1928 |
| Robert Larson | Son | — | 16 | ~1924 |
| Alice Larson | Daughter | — | 10 | ~1930 |
| Clara Larson | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Nicollet, Minnesota
Son, age 7
Nicollet, Minnesota · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Nicollet-County, Minnesota
Son, age 16
Nicollet-County, Minnesota · implied b. ~1924 — 8 household members
| Surname | Larson |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Peter |
| 1935 Residence (County) | Nicollet |
| Class of Worker | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Larson
Son · 1940 · age 16 · b. ~1924 · Minnesota
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Sibling
Curtis Larson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Larson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Muriel Larson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roger Larson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Larson
Sibling · 1940 · age 12
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 — Nicollet-County, Minnesota
Open full size
1940 US Federal Census — Nicollet-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01941-00784)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jeanette Rudell | 18 | Daughter | — | Minnesota |
| 2 | Einar Syrengen | 51 | Head | Farmer | Sweden |
| 3 | Albert Ekkel | 77 | Head | Farmer | Minnesota |
| 4 | Irving Battalson | 40 | Hired hand | Laborer | Minnesota |
| 5 | Wesley Meyer | 36 | Head | Farmer | Minnesota |
| 6 | Alice Meyer | 34 | Wife | — | Minnesota |
| 7 | Nels Anderson | 48 | Hired hand | Laborer | Minnesota |
| 8 | Gunnard Hedman | 49 | Head | Farmer | Minnesota |
| 9 | Leona Hedman | 39 | Wife | — | Minnesota |
| 10 | Dennis Hedman | 5 | Son | — | — |
| 11 | Joanne Hedman | 1 | Daughter | — | — |
| 12 | R. L. Struck | 50 | Head | Farmer | Minnesota |
| 13 | Adelheid Struck | 50 | Wife | — | Minnesota |
| 14 | August Gustafson | 63 | Head | Farmer | Sweden |
| 15 | Mary Gustafson | 60 | Wife | — | Minnesota |
| 16 | Hilding Gustafson | 31 | Son | Laborer | Minnesota |
| 17 | Chester Gustafson | 27 | Son | Laborer | Minnesota |
| 18 | Signe Gustafson | 18 | Daughter | — | Minnesota |
| 19 | Hilding Pehrson | 30 | Head | Farmer | Minnesota |
| 20 | Alice Pehrson | 31 | Wife | — | Minnesota |
| 21 | John Pehrson | 61 | Head | Farmer | Minnesota |
| 22 | Emma Pehrson | 59 | Wife | — | Minnesota |
| 23 | Willard Pehrson | 22 | Son | Laborer | Minnesota |
| 24 | Sarah Pehrson | 17 | Daughter | — | Minnesota |
| 25 | George Lambert | 32 | Head | Farmer | Minnesota |
| 26 | Azina Lambert | 62 | Mother | — | Minnesota |
| 27 | James Lambert | 22 | Brother | Laborer | Minnesota |
| 28 | J. Alfred Larson | 49 | Head | Farmer | Sweden |
| 29 | Clara A. Larson | 44 | Wife | — | Sweden |
| 30 | Curtis W. Larson | 19 | Son | Laborer | Minnesota |
| 31 | Muriel L. Larson | 18 | Daughter | — | Minnesota |
| 32 | Robert A. Larson THIS PERSON | 16 | Son | — | Minnesota |
| 33 | Roger H. C. Larson | 15 | Son | — | Minnesota |
| 34 | John A. Larson | 12 | Son | — | Minnesota |
| 35 | Alice M. Larson | 10 | Daughter | — | Minnesota |
| 36 | Otto Tastor | 39 | Head | Farmer | Germany |
| 37 | Melma Tastor | 33 | Wife | — | Minnesota |
| 38 | Arnold Tastor | 3 | Son | — | — |
| 39 | Henry Martens | 71 | Hired hand | Laborer | Illinois |
| 40 | Otto W. Larson | 54 | Head | Farmer | Minnesota |
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)