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Mary Maher — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Brown-County, Ohio
Our Model Tree links this Mary Maher across the 1930 and 1940 US Censuses in Brown-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 8-person household.
Age 39
b. ~1901
Female
Spouse
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Ohio |
| Surname | Maher |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | St. Martin Village |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | St Martin Village |
| Est. Birth Year | ~1901 |
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 |
|---|---|---|---|---|
| John Maher | Son | — | 13 | ~1927 |
| Raymond Maher | Son | — | 8 | ~1932 |
| Mary Maher | Spouse | — | 39 | ~1901 |
| Hanna Maher | Daughter | — | 14 | ~1926 |
| Francis Maher | Daughter | — | 15 | ~1925 |
| Donald Maher | Son | — | 11 | ~1929 |
| John Maher | Head | — | 49 | ~1891 |
| Rose Maher | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Brown, Ohio
Other, age 29
Brown, Ohio · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maher |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 23 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Brown-County, Ohio
Spouse, age 39
Brown-County, Ohio · implied b. ~1901 — 8 household members
| Surname | Maher |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | St. Martin Village |
| 1935 Residence (County) | Brown |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 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 Maher across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Maher
Spouse · 1940 · age 39 · b. ~1901 · Ohio
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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 — Brown-County, Ohio
Open full size
1940 US Federal Census — Brown-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03031-00313)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clinton Rosenbaum | 28 | Head | Laborer | Virginia |
| 2 | Mary Alice Rosenbaum | 31 | Wife | — | Kentucky |
| 3 | Harold Lee Rosenbaum | 5 | Son | — | Kentucky |
| 4 | Harrison Crit | 48 | Head | Laborer | Kentucky |
| 5 | Mary Alice Crit | 45 | Wife | — | Kentucky |
| 6 | Charles Crit | 19 | Son | — | Kentucky |
| 7 | Sy Norman Lawson | 25 | Son-in-law | Laborer | Kentucky |
| 8 | Lily Irene Lawson | 22 | Daughter | — | Tennessee |
| 9 | Harold Lawson | 1 | Grandson | — | Ohio |
| 10 | Roger Lawson | 0 | Grandson | — | Ohio |
| 11 | Willard Reynolds | 23 | Head | Laborer | Kentucky |
| 12 | Beula Reynolds | 16 | Wife | — | Kentucky |
| 13 | John D. Metzger | 72 | Head | — | Kentucky |
| 14 | Mary Metzger | 72 | Wife | — | Kentucky |
| 15 | Ruth Collins | 16 | Granddaughter | — | Ohio |
| 16 | John D. Dole | 47 | Head | Operator & Sales Clerk | Ohio |
| 17 | Frances Dole | 32 | Wife | — | Ohio |
| 18 | Eugene Boerstler | 38 | Head | Sales Clerk | Ohio |
| 19 | Marie D. Boerstler | 35 | Wife | — | Ohio |
| 20 | Maurene Boerstler | 5 | Daughter | — | Ohio |
| 21 | Marzene Boerstler | 3 | Daughter | — | Ohio |
| 22 | Frank Boerstler | 67 | Father | — | Ohio |
| 23 | Guy Dudley | 49 | Head | Manager Of Plant | Ohio |
| 24 | Ann Dudley | 44 | Wife | Operator | Ohio |
| 25 | Mary Waits | 22 | Daughter | — | Ohio |
| 26 | Russell Waits | 25 | Son-in-law | Truck Driver | Ohio |
| 27 | Leslie Graber | 56 | Head | Janitor | Ohio |
| 28 | Anna May Graber | 52 | Wife | — | Ohio |
| 29 | Gladys Graber | 20 | Daughter | Telephone Operator | Ohio |
| 30 | Emmett A. Huffner | 60 | Head | Clerk Of Township And Carpenter | Ohio |
| 31 | Agnes E. Huffner | 40 | Wife | — | Ohio |
| 32 | Rita Huffner | 16 | Daughter | — | Ohio |
| 33 | John D. Maher | 49 | Head | Labor | Indiana |
| 34 | Mary Maher THIS PERSON | 39 | Wife | — | Ohio |
| 35 | Francis Ellen Maher | 15 | Daughter | — | Ohio |
| 36 | Hanna C. Maher | 14 | Daughter | — | Ohio |
| 37 | John M. Maher | 13 | Son | — | Ohio |
| 38 | Donald Maher | 11 | Son | — | Ohio |
| 39 | Raymond B. Maher | 8 | Son | — | Ohio |
| 40 | Rose Ann Maher | 7 | Daughter | — | Ohio |
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)