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Mary Link — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Miami-County, Ohio
Our Model Tree links this Mary Link across the 1930 and 1940 US Censuses in Miami-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1898), then head of a 6-person household.
Age 42
b. ~1898
Female
Head
Born: Ohio
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Miami-County, Ohio |
| Surname | Link |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| 1935 Residence (City) | Piqua City |
| 1935 Residence (County) | Miami |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Piqua City |
| Est. Birth Year | ~1898 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Link | Son | — | 21 | ~1919 |
| Paul Link | Son | — | 19 | ~1921 |
| Mary Link | Head | — | 42 | ~1898 |
| Helen Link | Daughter | — | 15 | ~1925 |
| Thelma Link | Daughter | — | 12 | ~1928 |
| Wilma Link | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Miami, Ohio
Spouse, age 33
Miami, Ohio · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Link |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 20 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Miami-County, Ohio
Head, age 42
Miami-County, Ohio · implied b. ~1898 — 6 household members
| Surname | Link |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Widowed |
| Birthplace | Ohio |
| 1935 Residence (City) | Piqua City |
| 1935 Residence (County) | Miami |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Link across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Link
Head · 1940 · age 42 · b. ~1898 · Ohio
★ 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 — Miami-County, Ohio
Open full size
1940 US Federal Census — Miami-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03116-00250)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Reed | 32 | Head | Hose Master | Michigan |
| 2 | Esther O. Reed | 29 | Wife | — | Ohio |
| 3 | Melissa Reed | 1 | Daughter | — | Ohio |
| 4 | Mary Link THIS PERSON | 42 | Head | — | Ohio |
| 5 | Edward Link | 21 | Son | — | Ohio |
| 6 | Paul Link | 19 | Son | — | Indiana |
| 7 | Wilma Link | 17 | Daughter | Nurse Maid | Ohio |
| 8 | Helen Link | 15 | Daughter | — | Ohio |
| 9 | Thelma Link | 12 | Daughter | — | Ohio |
| 10 | James R. Thompson | 55 | Head | Woodworker | Ohio |
| 11 | Ralph H. Toon | 36 | Head | Laborer | Ohio |
| 12 | Jeanette H. Toon | 32 | Wife | — | Michigan |
| 13 | Innis S. Toon | 1 | Daughter | — | Ohio |
| 14 | Daniel Humburt | 30 | Head | Night Clerk | Ohio |
| 15 | Lavona Humburt | 28 | Wife | — | Ohio |
| 16 | Richard Humburt | 9 | Son | — | Ohio |
| 17 | Harriet Coffing | 85 | Head | — | Ohio |
| 18 | Stella Wood | 49 | Daughter | Textile Worker | Ohio |
| 19 | Lucille Wood | 24 | Daughter | Bookkeeper | Ohio |
| 20 | Genevieve North | 54 | Head | School Teacher | Ohio |
| 21 | Anne Louise Frickhofer | 34 | Head | Bookkeeper | Ohio |
| 22 | Lavina Mccurdy | 71 | Head | — | Ohio |
| 23 | Bess Mccurdy | 72 | Sister-in-law | — | Ohio |
| 24 | George Gerald Benham | 37 | Head | Salesman | Ohio |
| 25 | Genevieve Benham | 27 | Wife | — | Ohio |
| 26 | Barbara Ann Benham | 3 | Daughter | — | Ohio |
| 27 | Nancy Kay Benham | 2 | Daughter | — | Ohio |
| 28 | Ernest Hirt | 56 | Head | Salesman | Ohio |
| 29 | Gertrude Hirt | 51 | Wife | — | Ohio |
| 30 | Mary Hirt | 24 | Daughter | Secretary | Ohio |
| 31 | Robert Hirt | 22 | Son | Secretary | Ohio |
| 32 | Richard Hirt | 20 | Son | — | Ohio |
| 33 | Martha Hirt | 18 | Daughter | Bookkeeper | Ohio |
| 34 | Arthur Kiefer | 42 | Head | — | Ohio |
| 35 | Mabel Kiefer | 42 | Wife | Clerk | Ohio |
| 36 | Frances Kiefer | 15 | Daughter | — | Ohio |
| 37 | Ward Kiefer | 13 | Son | — | Ohio |
| 38 | James Kiefer | 9 | Son | — | Ohio |
| 39 | John Caulfield | 43 | Head | Machinist | Ohio |
| 40 | Clara Caulfield | 36 | Wife | — | Ohio |
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)