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John Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Butler-County, Kansas
Our Model Tree links this John Olson across the 1920, 1930 and 1940 US Censuses in Butler-County, Kansas (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 3-person household.
Age 63
b. ~1877
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butler-County, Kansas |
| Surname | Olson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Rosalia |
| 1935 Residence (County) | Butler |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | 2 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Rosalia |
| Est. Birth Year | ~1877 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Hazel Olson | Daughter | — | 22 | ~1918 |
| John Olson | Head | — | 63 | ~1877 |
| Minnie Olson | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Butler, Kansas
Head, age 44
Butler, Kansas · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Denmark |
| Year of Naturalization | 1894 |
| Birthplace (normalized) | denmark |
Head, age 53
Butler, Kansas · implied b. ~1877 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olsen |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 28 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Butler-County, Kansas
Head, age 63
Butler-County, Kansas · implied b. ~1877 — 3 household members
| Surname | Olson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Rosalia |
| 1935 Residence (County) | Butler |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | 2 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 John Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Olson
Head · 1940 · age 63 · b. ~1877 · Kansas
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Butler-County, Kansas
Open full size
1940 US Federal Census — Butler-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01222-00866)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wesley Epp | 18 | Son | Stone Work | Kansas |
| 42 | Lucille Epp | 17 | Daughter | — | Kansas |
| 43 | Margaret Epp | 16 | Daughter | Library Asst. | Kansas |
| 44 | Herbert Epp | 14 | Son | — | Kansas |
| 45 | Verna Epp | 11 | Daughter | — | Kansas |
| 46 | Mary Ann Epp | 7 | Daughter | — | Kansas |
| 47 | Henry Antone Epp | 3 | Son | — | Kansas |
| 48 | Roy Mcneal | 65 | Head | Dairy Farmer | Missouri |
| 49 | Grace Mcneal | 57 | Wife | — | Kansas |
| 50 | Elise Hatten | 17 | Lodger | Dairy Maid | Kansas |
| 51 | Ivan D. Patterson | 27 | Head | Dairy Man | Kansas |
| 52 | Frieda M. Patterson | 27 | Wife | — | Arkansas |
| 53 | Robert Lee Patterson | 3 | Son | — | Kansas |
| 54 | Donald Patterson | 1 | Son | — | Kansas |
| 55 | Barbara Ann Patterson | 0 | Daughter | — | Kansas |
| 56 | M. M. J. Pierce | 68 | Mother | — | Illinois |
| 57 | C. D. Pierce | 43 | Head | Dairy Man | Illinois |
| 58 | Unice Pierce | 38 | Wife | — | Iowa |
| 59 | J. C. Pierce | 15 | Son | — | Kansas |
| 60 | Harry Pierce | 40 | Brother | Farm Hand | Illinois |
| 61 | John R. Davidson | 57 | Head | Farmer | Kansas |
| 62 | Alma Davidson | 52 | Wife | — | Kansas |
| 63 | Bob Davidson | 19 | Son | Roust About | Kansas |
| 64 | John Olson THIS PERSON | 63 | Head | Farmer | Denmark |
| 65 | Minnie Olson | 62 | Wife | — | Kansas |
| 66 | Hazel Olson | 22 | Daughter | — | Kansas |
| 67 | John H. Dalke | 51 | Head | Farmer | Kansas |
| 68 | Harriet Dalke | 46 | Wife | — | Kansas |
| 69 | J. E. Ross | 62 | Head | Farmer | Kansas |
| 70 | Anna Ross | 56 | Wife | — | Illinois |
| 71 | Raymond Ross | 17 | Son | Farm Hand | Kansas |
| 72 | Eunice Ross | 13 | Daughter | — | Kansas |
| 73 | Alva Gaskill | 55 | Head | Farmer | Kansas |
| 74 | Emma Mcenire | 59 | Head | — | Kentucky |
| 75 | Bill Mcenire | 33 | Son | Farmer | Kansas |
| 76 | Lavanche Mcenire | 29 | Daughter-in-law | — | Kansas |
| 77 | A. J. Clarkson | 26 | Head | Farmer | Colorado |
| 78 | Ida Clarkson | 24 | Wife | — | Kansas |
| 79 | Dorothy Clarkson | 3 | Daughter | — | Kansas |
| 80 | Raymond Clarkson | 1 | Son | — | Kansas |
Related Census Records
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)