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Robert Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grant-County, Minnesota
Our Model Tree links this Robert Olson across the 1930 and 1940 US Censuses in Grant-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Grant-County, Minnesota |
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Grant |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Pomme De Terre Twp |
| Est. Birth Year | ~1927 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Bert Olson | Son | — | 6 | ~1934 |
| Robert Olson | Son | — | 13 | ~1927 |
| Betty Olson | Daughter | — | 16 | ~1924 |
| Connie Olson | Son | — | 20 | ~1920 |
| Oscar Olson | Head | — | 54 | ~1886 |
| Roland Olson | Son | — | 23 | ~1917 |
| Nancy Olson | Spouse | — | 48 | ~1892 |
| Kathline Olson | Daughter | — | 18 | ~1922 |
| Gloria Olson | Daughter | — | 11 | ~1929 |
| Valgene Olson | Daughter | — | 1 | ~1939 |
Census Appearances
1930
Grant, Minnesota
Son, age 3
Grant, Minnesota · implied b. ~1927 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Grant-County, Minnesota
Son, age 13
Grant-County, Minnesota · implied b. ~1927 — 10 household members
| Surname | Olson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Grant |
| Highest Grade | No 6 |
| 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 Olson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Olson
Son · 1940 · age 13 · b. ~1927 · Minnesota
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Sibling
Betty Olson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bert Olson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Connie Olson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Valgene Olson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gloria Olson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathline Olson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roland Olson
Sibling · 1940 · age 23
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 — Grant-County, Minnesota
Open full size
1940 US Federal Census — Grant-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01924-00286)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clarence D. Thiel | 47 | Head | Farmer | Iowa |
| 42 | John W. Thiel | 80 | Father | — | Iowa |
| 43 | Mary C. Thiel | 74 | Mother | — | New Jersey |
| 44 | Hattie M. Thiel | 41 | Sister | — | Iowa |
| 45 | Freeman A. Schraeffer | 36 | Head | Farmer | Minnesota |
| 46 | Lola Foster | 48 | Hired girl | House Work | South Dakota |
| 47 | Louis M. Schenck | 40 | Head | Farmer | Iowa |
| 48 | Lena Schenck | 41 | Wife | — | Minnesota |
| 49 | Joyce U. Schenck | 12 | Daughter | — | Minnesota |
| 50 | Marilyn L. Schenck | 8 | Daughter | — | Minnesota |
| 51 | John A. Ehlers | 21 | Head | Farmer | North Dakota |
| 52 | Dagny E. Ehlers | 18 | Wife | — | Minnesota |
| 53 | Alana Ehlers | 60 | Mother | — | Minnesota |
| 54 | Violet E. Ehlers | 17 | Sister | — | North Dakota |
| 55 | Hans P. Juke | 55 | Head | Farmer | Germany |
| 56 | Kathryn Juke | 58 | Wife | — | Wisconsin |
| 57 | Sigval B. Johnson | 52 | Head | Farmer | Minnesota |
| 58 | Maria F. Johnson | 46 | Wife | — | Minnesota |
| 59 | Ethel M. Johnson | 18 | Daughter | — | Minnesota |
| 60 | Shirley L. Johnson | 12 | Daughter | — | Minnesota |
| 61 | Emil A. Woessner | 45 | Head | Farmer | Minnesota |
| 62 | Katie E. Woessner | 45 | Wife | — | Iowa |
| 63 | Clarence E. Woessner | 20 | Son | Labourer | Minnesota |
| 64 | Rudolph H. Woessner | 16 | Son | Labourer | Minnesota |
| 65 | Harlan R. Woessner | 13 | Son | Labourer | Minnesota |
| 66 | Alfred E. Tollefson | 56 | Head | Farmer | Minnesota |
| 67 | Clara M. Tollefson | 46 | Wife | — | Minnesota |
| 68 | Syle M. Tollefson | 7 | Son | — | Minnesota |
| 69 | Oscar E. Olson | 54 | Head | Farmer | Minnesota |
| 70 | Nancy Olson | 48 | Wife | — | Minnesota |
| 71 | Roland Olson | 23 | Son | Labourer | Minnesota |
| 72 | Connie Olson | 20 | Son | Labourer | Minnesota |
| 73 | Kathline Olson | 18 | Daughter | — | Minnesota |
| 74 | Betty J. Olson | 16 | Daughter | — | Minnesota |
| 75 | Robert Olson THIS PERSON | 13 | Son | — | Minnesota |
| 76 | Gloria J. Olson | 11 | Daughter | — | Minnesota |
| 77 | Bert H. Olson | 6 | Son | — | Minnesota |
| 78 | Valgene M. Olson | 1 | Daughter | — | Minnesota |
| 79 | Gordon O. Strom | 24 | Head | Labourer | Minnesota |
| 80 | Florence E. Strom | 21 | Wife | — | 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)