MC
Martha Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kidder-County, North Dakota
Our Model Tree links this Martha Cook across the 1920, 1930 and 1940 US Censuses in Kidder-County, North Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1881), then head of a 4-person household.
Age 59
b. ~1881
Female
Spouse
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kidder-County, North Dakota |
| Surname | Cook |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Lake Williams twp. |
| 1935 Residence (County) | Kidder |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Postmaster |
| Industry | Postoffice |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 450 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Postmaster |
| Township / Ward | Lake Williams Twp |
| Est. Birth Year | ~1881 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Charley Cook | Head | — | 73 | ~1867 |
| Mary Cook | Daughter | — | 13 | ~1927 |
| Martha Cook | Spouse | — | 59 | ~1881 |
| Jane Cook | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Kidder, North …
Spouse, age 38
Kidder, North Dakota · implied b. ~1882 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Martha B. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1883 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1930
Kidder, North …
Spouse, age 49
Kidder, North Dakota · implied b. ~1881 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Martha K. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1883 |
| Age at First Marriage | 25 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Postmaster |
| Industry | Post Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Kidder-County, North …
Spouse, age 59
Kidder-County, North Dakota · implied b. ~1881 — 4 household members
| Surname | Cook |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Lake Williams twp. |
| 1935 Residence (County) | Kidder |
| Naturalization Status | Naturalized |
| Occupation | Postmaster |
| Industry | Postoffice |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 450 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Martha Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Cook
Spouse · 1940 · age 59 · b. ~1881 · North 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 — Kidder-County, North Dakota
Open full size
1940 US Federal Census — Kidder-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03004-00353)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John D Walters | 46 | Head | Labor | N. Dak |
| 2 | Suzy Walters | 72 | Mother | — | Russia |
| 3 | Jacob A Hoerner | 47 | Head | Proprietor | Russia |
| 4 | Theresia Hoerner | 40 | Wife | — | N. Dak |
| 5 | Edward Hoerner | 19 | Son | Clerk For Federal Agency | N. Dak |
| 6 | Rosa Hoerner | 17 | Daughter | — | N. Dak |
| 7 | Reinilda Hoerner | 16 | Daughter | — | N. Dak |
| 8 | Albert Hoerner | 14 | Son | — | N. Dak |
| 9 | Margaret Hoerner | 13 | Daughter | — | N. Dak |
| 10 | Isidore Hoerner | 7 | Son | — | N. Dak |
| 11 | Charley D Cook | 73 | Head | Mail Carrier | Indiana |
| 12 | Martha Cook THIS PERSON | 59 | Wife | Postmaster | Norway |
| 13 | Jane Louise Cook | 27 | Daughter | — | Minnesota |
| 14 | Mary Virginia Cook | 13 | Daughter | — | N. Dak |
| 15 | Wilbur E Orner | 56 | Head | School Project | N. Dak |
| 16 | Bessie Orner | 44 | Wife | — | Iowa |
| 17 | Martha Palmatier | 13 | Step-sister | — | N. Dak |
| 18 | Estelle A Random | 41 | Head | Station Agent | N. Dak |
| 19 | Lee A Gulden | 56 | Head | Salesman | Minnesota |
| 20 | Cynthia Gulden | 42 | Wife | — | Wisconsin |
| 21 | Gray Gulden | 18 | Son | Labor | N. Dak |
| 22 | Vernice Gulden | 14 | Daughter | — | N. Dak |
| 23 | Larry Gulden | 3 | Son | — | N. Dak |
| 24 | John Q Shockley | 38 | Head | Salesman | Wisconsin |
| 25 | Evelyn Shockley | 29 | Wife | — | Iowa |
| 26 | Marine Shockley | 14 | Daughter | — | N. Dak |
| 27 | Barbara Shockley | 10 | Daughter | — | N. Dak |
| 28 | Joyce Shockley | 9 | Daughter | — | N. Dak |
| 29 | Betty De Krey | 25 | Roomer | Teacher | N. Dak |
| 30 | B. G. A Gulden | 67 | Head | Farmer | Iowa |
| 31 | Joe A Hagel | 65 | Head | — | Austria |
| 32 | Effie Hagel | 54 | Wife | — | Wisconsin |
| 33 | Doris Hagel | 14 | Daughter | — | N. Dak |
| 34 | Ernest A Geringer | 36 | Head | Auto Mechanic | N. Dak |
| 35 | Lesta Geringer | 29 | Wife | — | Iowa |
| 36 | Lawson Geringer | 2 | Son | — | N. Dak |
| 37 | Albert A Walters | 37 | Head | Labor | N. Dak |
| 38 | Erma Walters | 27 | Wife | — | N. Dak |
| 39 | Mary Walters | 10 | Step-daughter | — | N. Dak |
| 40 | Elsie Walters | 5 | Daughter | — | N. Dak |
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)