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Mary Larkin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grant-County, Wisconsin
Our Model Tree links this Mary Larkin across the 1930 and 1940 US Censuses in Grant-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Grant-County, Wisconsin |
| Surname | Larkin |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Hazel Green Township |
| 1935 Residence (County) | Grant |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Hazel Green Township |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Bernice Larkin | Daughter | — | 13 | ~1927 |
| Shirley Larkin | Daughter | — | 3 | ~1937 |
| Mary Larkin | Daughter | — | 16 | ~1924 |
| Philip Larkin | Head | — | 43 | ~1897 |
| Herman Larkin | Son | — | 14 | ~1926 |
| Leonard Larkin | Son | — | 7 | ~1933 |
| Gene Larkin | Son | — | 12 | ~1928 |
| Kenneth Larkin | Son | — | 15 | ~1925 |
| Gertrude Larkin | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Grant, Wisconsin
Daughter, age 6
Grant, Wisconsin · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larkin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Grant-County, Wisconsin
Daughter, age 16
Grant-County, Wisconsin · implied b. ~1924 — 9 household members
| Surname | Larkin |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Hazel Green Township |
| 1935 Residence (County) | Grant |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Larkin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Larkin
Daughter · 1940 · age 16 · b. ~1924 · Wisconsin
★ You are viewing this record
Sibling
Gene Larkin
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Larkin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Larkin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Larkin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herman Larkin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Larkin
Sibling · 1940 · age 3
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 — Grant-County, Wisconsin
Open full size
1940 US Federal Census — Grant-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04481-00400)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joe Cullen | 66 | Head | Farming | Wisconsin |
| 42 | Sophia Cullen | 63 | Wife | — | Wisconsin |
| 43 | Mildred Kies | 32 | Daughter | Teacher | Wisconsin |
| 44 | Paul Kies | 39 | Son-in-law | Barber | Wisconsin |
| 45 | Henry De Buhr | 54 | Head | Farming | Wisconsin |
| 46 | Margaret De Buhr | 54 | Wife | — | Wisconsin |
| 47 | Milton De Buhr | 19 | Son | Farming | Wisconsin |
| 48 | Gerald (A B) De Buhr | 21 | Son | Farming | Wisconsin |
| 49 | James (A B) De Buhr | 23 | Son | Farming | Wisconsin |
| 50 | Helen De Buhr | 27 | Daughter | — | Wisconsin |
| 51 | August Runde | 73 | Head | — | Wisconsin |
| 52 | Lalicia Runde | 66 | Wife | — | Illinois |
| 53 | Carl Runde | 28 | Son | Farming | Wisconsin |
| 54 | Mary Runde | 25 | Daughter | — | Wisconsin |
| 55 | Mildred Runde | 26 | Daughter | School Teacher | Wisconsin |
| 56 | Linus Runde | 1 | Grandson | — | Wisconsin |
| 57 | Philip Larkin | 43 | Head | Farming | Wisconsin |
| 58 | Gertrude Larkin | 39 | Wife | — | Wisconsin |
| 59 | Mary Jane Larkin THIS PERSON | 16 | Daughter | — | Wisconsin |
| 60 | Kenneth Larkin | 15 | Son | — | Wisconsin |
| 61 | Herman Larkin | 14 | Son | — | Wisconsin |
| 62 | Bernice Larkin | 13 | Daughter | — | Wisconsin |
| 63 | Gene Larkin | 12 | Son | — | Wisconsin |
| 64 | Leonard Larkin | 7 | Son | — | Wisconsin |
| 65 | Shirley Ann Larkin | 3 | Daughter | — | Wisconsin |
| 66 | Arnold Folmer | 31 | Head | Farming | Wisconsin |
| 67 | Lucille Folmer | 32 | Wife | — | Wisconsin |
| 68 | Melvin Hanson | 25 | Head | Farming | Wisconsin |
| 69 | Rita Hanson | 20 | Wife | — | Wisconsin |
| 70 | Ruth Ann Hanson | 0 | Daughter | — | Wisconsin |
| 71 | August Wiederholt | 58 | Head | Farming | Wisconsin |
| 72 | Alpha Wiederholt | 24 | Daughter | — | Wisconsin |
| 73 | Carl Wiederholt | 22 | Son | — | Wisconsin |
| 74 | Carl Wiederholt | 17 | Son | — | Wisconsin |
| 75 | James Shining | 26 | Head | — | Wisconsin |
| 76 | Eula Shining | 34 | Wife | — | Wisconsin |
| 77 | Matt Bertjens | 57 | Head | Farming | Belgium |
| 78 | Anna Bertjens | 56 | Wife | — | Wisconsin |
| 79 | Bernice Bertjens | 31 | Daughter | — | Wisconsin |
| 80 | Albertus Bertjens | 25 | Son | Laborer | Wisconsin |
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)