MK
Mary Klein — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clinton-County, Michigan
Our Model Tree links this Mary Klein across the 1930 and 1940 US Censuses in Clinton-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Michigan |
| Surname | Klein |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Dallas Township |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Class of Worker | H 5 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Dallas Township |
| Est. Birth Year | ~1921 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Klein | Daughter | — | 19 | ~1921 |
| Lawrence Klein | Son | — | 9 | ~1931 |
| Leona Klein | Spouse | — | 49 | ~1891 |
| Mary Klein | Daughter | — | 7 | ~1933 |
| Peter Klein | Head | — | 37 | ~1903 |
| Paul Klein | Son | — | 17 | ~1923 |
| Monica Klein | Daughter | — | 11 | ~1929 |
| Peter Klein | Son | — | 13 | ~1927 |
Census Appearances
1930
Clinton, Michigan
Daughter, age 8
Clinton, Michigan · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Clinton-County, Michigan
Daughter, age 19
Clinton-County, Michigan · implied b. ~1921 — 8 household members
| Surname | Klein |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Dallas Township |
| 1935 Residence (County) | Clinton |
| Class of Worker | H 5 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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.
Show:
This person
Anchor record
Mary Klein
Daughter · 1940 · age 19 · b. ~1921 · Michigan
★ You are viewing this record
Sibling
Lawrence Klein
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Klein
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Klein
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Monica Klein
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Klein
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clinton-County, Michigan
Open full size
1940 US Federal Census — Clinton-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01743-00138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joan Schafer | 10 | Daughter | — | Michigan |
| 2 | Joseph Schafer | 8 | Son | — | Michigan |
| 3 | Mark Schafer | 6 | Son | — | Michigan |
| 4 | Anthony Schafer | 4 | Son | — | Michigan |
| 5 | Louise M. Rossow | 74 | Head | — | Germany |
| 6 | Herbert Eberhart | 39 | Nephew | Carpenter | Michigan |
| 7 | Peter J. Klein | 37 | Head | Farmer | Michigan |
| 8 | Leona J. Klein | 49 | Wife | — | Michigan |
| 9 | Mary E. Klein THIS PERSON | 19 | Daughter | — | Michigan |
| 10 | Paul L. Klein | 17 | Son | Laborer | Michigan |
| 11 | Peter W. Klein | 13 | Son | — | Michigan |
| 12 | Monica A. Klein | 11 | Daughter | — | Michigan |
| 13 | Lawrence L. Klein | 9 | Son | — | Michigan |
| 14 | Mary L. Klein | 7 | Daughter | — | Michigan |
| 15 | Albert M. Sichley | 43 | Head | Plumber | Michigan |
| 16 | Mary M. Sichley | 41 | Wife | — | Michigan |
| 17 | Kenneth A. Sichley | 16 | Son | Attendant | Michigan |
| 18 | Genevieve Sichley | 12 | Daughter | — | Michigan |
| 19 | Angela L. Sichley | 10 | Daughter | — | Michigan |
| 20 | Beatrice L. Sichley | 3 | Daughter | — | Michigan |
| 21 | Katherine Miller | 79 | Mother-in-law | — | Michigan |
| 22 | Louis Bierstadt | 70 | Head | Farmer | Michigan |
| 23 | Charles Bierstadt | 68 | Brother | Laborer | Michigan |
| 24 | Stephen Dayton | 30 | Head | Farmer | Croatia |
| 25 | James Cretnic | 68 | Father | Farmer | Croatia |
| 26 | Rose Cretnic | 54 | Mother | — | Croatia |
| 27 | John Cretnic | 33 | Cousin | Laborer | Croatia |
| 28 | Theodore Foulk | 36 | Lodger | Laborer | Illinois |
| 29 | Archie B. Sexton | 34 | Head | Farmer | Michigan |
| 30 | Beatrice B. Sexton | 34 | Wife | — | Michigan |
| 31 | Richard Sexton | 11 | Son | — | Michigan |
| 32 | Patricia Sexton | 9 | Daughter | — | Michigan |
| 33 | Gerald Sexton | 7 | Son | — | Michigan |
| 34 | Isadore Schonberg | 37 | Head | Farmer | Michigan |
| 35 | Esther Schonberg | 34 | Wife | — | Michigan |
| 36 | Joyce L. Schonberg | 1 | Daughter | — | Michigan |
| 37 | Robert J. Thelen | 52 | Head | Farmer | Michigan |
| 38 | Rose M. Thelen | 44 | Wife | — | Michigan |
| 39 | Raymond J. Thelen | 15 | Son | Laborer | Michigan |
| 40 | Marcella M. Thelen | 16 | Daughter | — | Michigan |
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)