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Robert Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Beadle-County, South Dakota
Our Model Tree links this Robert Olson across the 1920, 1930 and 1940 US Censuses in Beadle-County, South Dakota (XGBoost, ~Confirmed), with identified parents Lillian & Oscar — first a head (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Beadle-County, South Dakota |
| Surname | Olson |
| Given Name | Robert H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Beadle |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Farmer |
| Township / Ward | Theresa |
| Est. Birth Year | ~1915 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Joane Olson | Daughter | — | 3 | ~1937 |
| Robert Olson | Head | — | 25 | ~1915 |
| Maxine Olson | Spouse | — | 27 | ~1913 |
| Clayton Olson | Son | — | ~1940 | |
| Saundra Olson | Daughter | — | 1 | ~1939 |
Census Appearances
1920
Beadle, South …
Son, age 4
Beadle, South Dakota · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Robert G. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Occupation | none |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Beadle, South …
Son, age 14
Beadle, South Dakota · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Beadle-County, South …
Head, age 25
Beadle-County, South Dakota · implied b. ~1915 — 5 household members
| Surname | Olson |
| Given Name | Robert H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Beadle |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south 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 Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lillian Olson (~0.92 confidence) and father Oscar Olson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lillian Olson
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Oscar Olson
b. ~1893
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Olson
Head · 1940 · age 25 · b. ~1915 · South 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 — Beadle-County, South Dakota
Open full size
1940 US Federal Census — Beadle-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03847-00757)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John L. Kota | 26 | Son | Farmer | California |
| 42 | Erich J. Gutzke | 45 | Head | Farmer | Iowa |
| 43 | Laura E. Gutzke | 43 | Wife | — | Iowa |
| 44 | Alfred F. Boetie | 65 | Head | Farmer | Iowa |
| 45 | Sara Boetie | 58 | Wife | — | Kansas |
| 46 | Walter J. Tobin | 55 | Head | Farmer | Iowa |
| 47 | Alta M. Tobin | 42 | Wife | — | Iowa |
| 48 | Eleanor J. Tobin | 16 | Daughter | — | South Dakota |
| 49 | Grace M. Tobin | 13 | Daughter | — | South Dakota |
| 50 | Walter M. Tobin | 12 | Son | — | South Dakota |
| 51 | Mary L. Duke | 19 | Daughter | — | South Dakota |
| 52 | Arthur L. Duke | 21 | Son-in-law | Trucking | South Dakota |
| 53 | Arthur L. Duke | 0 | Grandson | — | South Dakota |
| 54 | Robert H. Olson THIS PERSON | 25 | Head | Farmer | South Dakota |
| 55 | Maxine F. Olson | 27 | Wife | — | Nebraska |
| 56 | Joane C. Olson | 3 | Daughter | — | South Dakota |
| 57 | Saundra Olson | 1 | Daughter | — | South Dakota |
| 58 | Clayton D. Olson | 0 | Son | — | South Dakota |
| 59 | Louis J. Schultz | 57 | Head | Farmer | Nebraska |
| 60 | Frencie Schultz | 57 | Wife | — | Bohemia |
| 61 | Henry E. Schultz | 34 | Son | Farmer | Nebraska |
| 62 | Mildred M. Schultz | 28 | Daughter | Secretary | South Dakota |
| 63 | Harry E. De Long | 50 | Head | Farmer | South Dakota |
| 64 | Lottie M. De Long | 52 | Wife | — | Iowa |
| 65 | George T. De Long | 30 | Son | Butcher | South Dakota |
| 66 | Deola V. De Long | 26 | Daughter-in-law | — | South Dakota |
| 67 | Helen J. De Long | 4 | Granddaughter | — | South Dakota |
| 68 | Marion C. Thomas | 32 | Nephew | Butcher | South Dakota |
| 69 | Wallace W. Wormstadt | 28 | Head | Farmer | South Dakota |
| 70 | Winifred L. Wormstadt | 27 | Wife | — | South Dakota |
| 71 | Milo E. Wormstadt | 5 | Son | — | South Dakota |
| 72 | Dell Noehr | 60 | Laborer | Farm Laborer | South Dakota |
| 73 | Erick A. Lindgren | 47 | Head | Farmer | Sweden |
| 74 | Bernice L. Lindgren | 42 | Wife | — | Wisconsin |
| 75 | Audrey A. Lindgren | 10 | Daughter | — | South Dakota |
| 76 | George L. Younger | 73 | Head | Farmer | Iowa |
| 77 | Minnie E. Younger | 73 | Wife | — | Wisconsin |
| 78 | Otto L. Younger | 47 | Head | Farmer | Wisconsin |
| 79 | Emily E. Younger | 50 | Wife | — | South Dakota |
| 80 | Lawrence O. Younger | 17 | Son | — | South Dakota |
Pedigree Summary
Robert
Gen 1 · 2 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)