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William Hartman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Williams-County, North Dakota
Our Model Tree links this William Hartman across the 1910, 1920, 1930 and 1940 US Censuses in Williams-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Williams-County, North Dakota |
| Surname | Hartman |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Williston Twp. |
| 1935 Residence (County) | Williams |
| Additional Details | |
| Occupation | Farmer |
| Industry | Gr. Farming |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Williston Twp |
| Est. Birth Year | ~1875 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Estella Hartman | Spouse | — | 62 | ~1878 |
| Cormagean Hartman | Daughter | — | 18 | ~1922 |
| William Hartman | Head | — | 65 | ~1875 |
Census Appearances
1910
Williams, North …
Head, age 35
Williams, North Dakota · implied b. ~1875 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartman |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Years Married | 13 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General Farm |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Williams, North …
Head, age 45
Williams, North Dakota · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartman |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Laborer |
| Industry | Gen Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Williams, North …
Head, age 54
Williams, North Dakota · implied b. ~1876 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartman |
| Given Name | William R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 23 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | Grain & Stock |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1500 |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Williams-County, North …
Head, age 65
Williams-County, North Dakota · implied b. ~1875 — 3 household members
| Surname | Hartman |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Williston Twp. |
| 1935 Residence (County) | Williams |
| Occupation | Farmer |
| Industry | Gr. Farming |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| 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 William Hartman across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Hartman
Head · 1940 · age 65 · b. ~1875 · North 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 — Williams-County, North Dakota
Open full size
1940 US Federal Census — Williams-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03018-01024)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul B. Enders | 46 | Head | Farmer | So. Dak |
| 42 | Mae Enders | 44 | Wife | — | Iowa |
| 43 | Nina Enders | 18 | Daughter | — | No. Dak |
| 44 | Maxine Enders | 13 | Daughter | — | No. Dak |
| 45 | Joseph Salonek | 28 | Hired man | Farmer | Wyoming |
| 46 | John D. Howard | 57 | Head | Farmer | Iowa |
| 47 | Velora Howard | 39 | Wife | — | Illinois |
| 48 | Eugene Howard | 17 | Son | — | No. Dak |
| 49 | Kathleen Howard | 13 | Daughter | — | No. Dak |
| 50 | Eileen Howard | 12 | Daughter | — | No. Dak |
| 51 | Doris Lou Howard | 6 | Daughter | — | No. Dak |
| 52 | Chas Silverwood | 51 | Head | St. Boilermaker | Michigan |
| 53 | Anna Silverwood | 45 | Wife | — | Ohio |
| 54 | David Silverwood | 10 | Son | — | No. Dak |
| 55 | Alma Silverwood | 6 | Daughter | — | No. Dak |
| 56 | Elmer Silverwood | 3 | Son | — | No. Dak |
| 57 | Emil O. Larson | 48 | Head | Farmer | Iowa |
| 58 | Olina Larson | 49 | Wife | — | Minnesota |
| 59 | Bennie Stuen | 33 | Head | Farmer | So. Dak |
| 60 | Lilian Stuen | 27 | Wife | — | Nebraska |
| 61 | Jelean Stuen | 4 | Daughter | — | No. Dak |
| 62 | Paul Stuen | 1 | Son | — | No. Dak |
| 63 | James Stuen | 0 | Son | — | No. Dak |
| 64 | Hans O. Sandaker | 31 | Head | Farmer | Minnesota |
| 65 | Evelyn Sandaker | 30 | Wife | — | No. Dak |
| 66 | Russell Sandaker | 5 | Son | — | No. Dak |
| 67 | Conrad Sandaker | 3 | Son | — | No. Dak |
| 68 | William Hartman THIS PERSON | 65 | Head | Farmer | Minnesota |
| 69 | Estella Hartman | 62 | Wife | — | Minnesota |
| 70 | Cormagean Hartman | 18 | Daughter | — | No. Dak |
| 71 | Henry H. Sorenson | 49 | Head | Farmer | No. Dak |
| 72 | Edna Sorenson | 45 | Wife | Salesman | No. Dak |
| 73 | Hearold Sorenson | 27 | Son | Farmer | No. Dak |
| 74 | Dolores Sorenson | 22 | Daughter | Saleslady | No. Dak |
| 75 | Ernest Kjos | 28 | Head | 52 | No. Dak |
| 76 | Mildred Kjos | 23 | Wife | — | No. Dak |
| 77 | Gerald Kjos | 2 | Son | — | No. Dak |
| 78 | Carole Kjos | 1 | Daughter | — | No. Dak |
| 79 | Olaus Kjos | 56 | Head | Helper-Carp. | No. Dak |
| 80 | Jennie Kjos | 46 | 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)