MK
Mary Klein — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Moody-County, South Dakota
Our Model Tree links this Mary Klein across the 1930 and 1940 US Censuses in Moody-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 9-person household.
Age 44
b. ~1896
Female
Spouse
Born: Luxemburg
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Moody-County, South Dakota |
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Luxemburg |
| 1935 Residence (City) | Enterprise |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | Hs 4 |
| Birthplace (normalized) | luxemburg |
| Township / Ward | Enterprise |
| Est. Birth Year | ~1896 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Klein | Spouse | — | 44 | ~1896 |
| Harold Klein | Son | — | 9 | ~1931 |
| Jeanette Klein | Daughter | — | 13 | ~1927 |
| Jerome Klein | Son | — | 6 | ~1934 |
| Lucille Klein | Daughter | — | 17 | ~1923 |
| Delphine Klein | Daughter | — | 11 | ~1929 |
| Edward Moeller | Other | — | 24 | ~1916 |
| Norbert Klein | Son | — | 15 | ~1925 |
| Joseph Klein | Head | — | 54 | ~1886 |
Census Appearances
1930
Moody, South …
Spouse, age 39
Moody, South Dakota · implied b. ~1891 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Luxemburg |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 25 |
| Father's Birthplace | Luxemburg |
| Mother's Birthplace | Luxemburg |
| Occupation | Farmer |
| Industry | general farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birthplace (normalized) | luxemburg |
1940
Moody-County, South …
Spouse, age 44
Moody-County, South Dakota · implied b. ~1896 — 9 household members
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Luxemburg |
| 1935 Residence (City) | Enterprise |
| Naturalization Status | Naturalized |
| Highest Grade | Hs 4 |
| Birthplace (normalized) | luxemburg |
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 Mary Klein across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Klein
Spouse · 1940 · age 44 · b. ~1896 · 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 — Moody-County, South Dakota
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1940 US Federal Census — Moody-County, South Dakota
Page Contents
27 people indexed on this census page (nara:1940:m-t0627-03865-00101)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maureen Ann Penning | 2 | Daughter | — | South Dakota |
| 2 | Nick J. Penning | 37 | Head | Farm | Iowa |
| 3 | Edna M. Penning | 37 | Wife | — | Iowa |
| 4 | Dolores Dolmes | 15 | Daughter | — | South Dakota |
| 5 | Vernon Dolmes | 13 | Son | — | South Dakota |
| 6 | Loren Dolmes | 12 | Son | — | South Dakota |
| 7 | Bernice Dolmes | 11 | Daughter | — | South Dakota |
| 8 | Melvin Dolmes | 9 | Son | — | South Dakota |
| 9 | Elmer Dolmes | 7 | Son | — | South Dakota |
| 10 | Alice Dolmes | 6 | Daughter | — | South Dakota |
| 11 | Nicholas Jr. Dolmes | 4 | Son | — | South Dakota |
| 12 | Terrance Dolmes | 3 | Son | — | South Dakota |
| 13 | Vera Dolmes | 0 | Daughter | — | South Dakota |
| 14 | Elwyn Winchester | 18 | Hired man | Farm Laborer | Nebraska |
| 15 | Joseph R. Klein | 54 | Head | Farm | Iowa |
| 16 | Mary Klein THIS PERSON | 44 | Wife | — | Luxemburg |
| 17 | Lucille Klein | 17 | Daughter | — | South Dakota |
| 18 | Norbert Klein | 15 | Son | — | South Dakota |
| 19 | Jeanette Klein | 13 | Daughter | — | South Dakota |
| 20 | Delphine Klein | 11 | Daughter | — | South Dakota |
| 21 | Harold Klein | 9 | Son | — | South Dakota |
| 22 | Jerome Klein | 6 | Son | — | South Dakota |
| 23 | Edward Moeller | 24 | Hired man | Laborer | South Dakota |
| 24 | George Progghammer | 73 | Head | Farm | Iowa |
| 25 | John Progghammer | 46 | Son | Farm | Iowa |
| 26 | Anthony Progghammer | 43 | Son | Farm | Iowa |
| 27 | Magdalen Progghammer | 34 | Daughter | — | 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)