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Mary Mahoney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Logan-County, West Virginia
Our Model Tree links this Mary Mahoney across the 1930 and 1940 US Censuses in Logan-County, West Virginia (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: West Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Logan-County, West Virginia |
| Surname | Mahoney |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | West Virginia |
| 1935 Residence (City) | Logan District |
| 1935 Residence (County) | Logan |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Township / Ward | Logan District |
| 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 |
|---|---|---|---|---|
| Mary Mahoney | Daughter | — | 16 | ~1924 |
| Jean Mahoney | Daughter | — | 9 | ~1931 |
| Betty Mahoney | Daughter | — | 11 | ~1929 |
| Raymond Mahoney | Head | — | 38 | ~1902 |
| Charles Mahoney | Son | — | 17 | ~1923 |
| John Mahoney | Son | — | 13 | ~1927 |
| Ralph Mahoney | Son | — | 15 | ~1925 |
| Donald Mahoney | Son | — | 14 | ~1926 |
| Louise Mahoney | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Logan, West …
Daughter, age 6
Logan, West Virginia · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahany |
| Given Name | Mary Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | West Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
Logan-County, West …
Daughter, age 16
Logan-County, West Virginia · implied b. ~1924 — 9 household members
| Surname | Mahoney |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | West Virginia |
| 1935 Residence (City) | Logan District |
| 1935 Residence (County) | Logan |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 Mahoney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mahoney
Daughter · 1940 · age 16 · b. ~1924 · West Virginia
★ You are viewing this record
Sibling
Ralph Mahoney
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mahoney
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Mahoney
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mahoney
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Mahoney
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Mahoney
Sibling · 1940 · age 14
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 — Logan-County, West Virginia
Open full size
1940 US Federal Census — Logan-County, West Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04420-00108)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Millard Kent | 13 | Son | — | West Virginia |
| 2 | Mary L. Kent | 9 | Daughter | — | West Virginia |
| 3 | Roger Kent | 7 | Son | — | West Virginia |
| 4 | Frankie Kent | 5 | Son | — | West Virginia |
| 5 | Steve Polka | 56 | Head | Miner | Hungary |
| 6 | Julia A. Polka | 47 | Wife | — | Hungary |
| 7 | Noah Adkins | 35 | Head | Inspector | West Virginia |
| 8 | Vada A. Adkins | 29 | Wife | — | West Virginia |
| 9 | Ezra L. Adkins | 13 | Son | — | West Virginia |
| 10 | Beulah L. Adkins | 11 | Daughter | — | West Virginia |
| 11 | Charles R. Adkins | 10 | Son | — | West Virginia |
| 12 | Bobbie L. Adkins | 8 | Son | — | West Virginia |
| 13 | Alva L. Adkins | 6 | Son | — | West Virginia |
| 14 | Roy E. Adkins | 5 | Son | — | West Virginia |
| 15 | Dallas N. Adkins | 4 | Son | — | West Virginia |
| 16 | Eldrich M. Adkins | 2 | Daughter | — | West Virginia |
| 17 | Lloyd A. Guess | 23 | Head | Miner | Virginia |
| 18 | Spring Guess | 17 | Wife | — | West Virginia |
| 19 | Shirley Guess | 1 | Daughter | — | West Virginia |
| 20 | Roy H. A. May | 31 | Head | Compressor | West Virginia |
| 21 | Estella May | 22 | Wife | — | West Virginia |
| 22 | Wanda L. May | 5 | Daughter | — | West Virginia |
| 23 | Mary L. May | 2 | Daughter | — | West Virginia |
| 24 | Raymond Mahoney | 38 | Head | Meterman | West Virginia |
| 25 | Louise V. Mahoney | 36 | Wife | — | West Virginia |
| 26 | Charles Mahoney | 17 | Son | — | West Virginia |
| 27 | Mary R. Mahoney THIS PERSON | 16 | Daughter | — | West Virginia |
| 28 | Ralph Mahoney | 15 | Son | — | West Virginia |
| 29 | Donald Mahoney | 14 | Son | — | West Virginia |
| 30 | John F. Mahoney | 13 | Son | — | West Virginia |
| 31 | Betty L. Mahoney | 11 | Daughter | — | West Virginia |
| 32 | Jean Mahoney | 9 | Daughter | — | West Virginia |
| 33 | Frank A. Hill | 38 | Head | Engineer | West Virginia |
| 34 | Essie Hill | 36 | Wife | — | West Virginia |
| 35 | Billie J. Hill | 10 | Son | — | West Virginia |
| 36 | Orville C. Craddock | 39 | Head | Miner | West Virginia |
| 37 | Vieta A. Craddock | 28 | Wife | — | West Virginia |
| 38 | Juanita L. Craddock | 11 | Daughter | — | West Virginia |
| 39 | Jimmie Craddock | 10 | Son | — | West Virginia |
| 40 | Velva D. Craddock | 8 | Daughter | — | West Virginia |
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)