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Hans Hansen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clark-County, South Dakota
Our Model Tree links this Hans Hansen across the 1920, 1930 and 1940 US Censuses in Clark-County, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 8-person household.
Age 54
b. ~1886
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, South Dakota |
| Surname | Hansen |
| Given Name | Hans P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Dayton Township |
| 1935 Residence (County) | Clark |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Dayton Township |
| Est. Birth Year | ~1886 |
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 Hans | Age | Birth yr |
|---|---|---|---|---|
| Anna Hansen | Daughter | — | 17 | ~1923 |
| Gladys Hansen | Daughter | — | 10 | ~1930 |
| Inger Hansen | Daughter | — | 15 | ~1925 |
| Hans Hansen | Head | — | 54 | ~1886 |
| Harold Hansen | Son | — | 13 | ~1927 |
| Robert Hansen | Son | — | 4 | ~1936 |
| Henry Hansen | Son | — | 19 | ~1921 |
| Mildred Hansen | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Mountrail, North …
Head, age 38
Mountrail, North Dakota · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | Hans P. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1904 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| 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 | 1912 |
| Birthplace (normalized) | denmark |
1930
Clark, South …
Head, age 47
Clark, South Dakota · implied b. ~1883 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | Hans P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1903 |
| Age at First Marriage | 31 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Value / Rent | 31 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Clark-County, South …
Head, age 54
Clark-County, South Dakota · implied b. ~1886 — 8 household members
| Surname | Hansen |
| Given Name | Hans P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Dayton Township |
| 1935 Residence (County) | Clark |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Hans Hansen across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Hans Hansen
Head · 1940 · age 54 · b. ~1886 · South Dakota
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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 — Clark-County, South Dakota
Open full size
1940 US Federal Census — Clark-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03851-00547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Iver Hiby | 74 | Head | Farmer | Norway |
| 2 | Arthur Hiby | 42 | Son | Farmer | S. Dak. |
| 3 | Oscar Hiby | 35 | Son | Farmer | S. Dak. |
| 4 | Bertha Harvey | 56 | Head | Farmer | S. Dak. |
| 5 | Hans P. Hansen THIS PERSON | 54 | Head | Farmer | Denmark |
| 6 | Mildred Hansen | 46 | Wife | — | North Dakota |
| 7 | Henry Hansen | 19 | Son | Farm Labor | South Dakota |
| 8 | Anna Hansen | 17 | Daughter | Housemaid | South Dakota |
| 9 | Inger Hansen | 15 | Daughter | — | South Dakota |
| 10 | Harold Hansen | 13 | Son | — | South Dakota |
| 11 | Gladys Hansen | 10 | Daughter | — | South Dakota |
| 12 | Robert Hansen | 4 | Son | — | South Dakota |
| 13 | Alvin P. Johnson | 38 | Head | Farmer | South Dakota |
| 14 | Vera Johnson | 30 | Wife | — | South Dakota |
| 15 | Lois Johnson | 7 | Daughter | — | South Dakota |
| 16 | Donald Johnson | 5 | Son | — | South Dakota |
| 17 | Bertha Johnson | 2 | Daughter | — | South Dakota |
| 18 | Chris Thiedemann | 55 | Head | Farmer | Denmark |
| 19 | Nels Huke | 70 | Head | Farmer | Norway |
| 20 | Anne Huke | 72 | Wife | — | Norway |
| 21 | Edwin Huke | 42 | Son | Farmer | South Dakota |
| 22 | Agnes Huke | 37 | Daughter-in-law | — | South Dakota |
| 23 | Merlin Huke | 8 | Grandson | — | South Dakota |
| 24 | Roland Luch | 25 | Head | Farmer | South Dakota |
| 25 | Marie Luch | 20 | Wife | — | Nebraska |
| 26 | Monica Luch | 3 | Daughter | — | South Dakota |
| 27 | Minerva Luch | 2 | Daughter | — | South Dakota |
| 28 | Maxine Luch | 0 | Daughter | — | South Dakota |
| 29 | Alfred Johnson | 36 | Head | Farmer | South Dakota |
| 30 | Julie Johnson | 61 | Mother | — | Minnesota |
| 31 | Ernest Johnson | 28 | Brother | Farmer | South Dakota |
| 32 | Inez Johnson | 30 | Sister | Waitress | South Dakota |
| 33 | Herman Elfring | 67 | Head | Farmer | Illinois |
| 34 | Lawrence Hansen | 42 | Head | Farmer | Sweden |
| 35 | Martha Hansen | 37 | Wife | — | Sweden |
| 36 | Lawrence Hansen | 9 | Son | — | South Dakota |
| 37 | Everett Hansen | 5 | Son | — | South Dakota |
| 38 | Adolf Peterson | 53 | Head | Farmer | South Dakota |
| 39 | Idella Peterson | 46 | Wife | — | South Dakota |
| 40 | Leslie Peterson | 25 | Son | Farmer | South Dakota |
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)