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Mary Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Mary Mcdonough across the 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margerete Mcdonough | Daughter | — | 15 | ~1925 |
| Catherine Mcdonough | Daughter | — | 23 | ~1917 |
| Mary Mcdonough | Daughter | — | 12 | ~1928 |
| Helen Mcdonough | Daughter | — | 20 | ~1920 |
| William Mcdonough | Head | — | 47 | ~1893 |
| William Mcdonough | Son | — | 17 | ~1923 |
| Antoinette Mcdonough | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Hamilton, Ohio
Daughter, age 2
Hamilton, Ohio · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kentucky |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Daughter, age 12
Hamilton-County, Ohio · implied b. ~1928 — 7 household members
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Highest Grade | No 6 |
| 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 Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcdonough
Daughter · 1940 · age 12 · b. ~1928 · Ohio
★ You are viewing this record
Sibling
Catherine Mcdonough
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mcdonough
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdonough
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margerete Mcdonough
Sibling · 1940 · age 15
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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03188-00411)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ethel Million | 29 | Wife | — | Kentucky |
| 2 | Harold Million | 9 | Son | — | Kentucky |
| 3 | Thomas Chopores | 62 | Father | Proprietor | Greece |
| 4 | George Chopores | 21 | Son | Proprietor | Michigan |
| 5 | Earl Chopores | 23 | Son | Service Man | Michigan |
| 6 | Frank Kay | 34 | Head | Repairman | Ohio |
| 7 | Elizabeth Kay | 34 | Wife | Maid | Tennessee |
| 8 | William M. Kay | 8 | Son | — | Tennessee |
| 9 | Robert Winglewish | 28 | Head | Machine Operator | Ohio |
| 10 | Mable Winglewish | 25 | Wife | — | Ohio |
| 11 | Joseph Winglewish | 9 | Son | — | Ohio |
| 12 | Catherine Winglewish | 7 | Daughter | — | Ohio |
| 13 | Barbara Winglewish | 4 | Daughter | — | Ohio |
| 14 | Robert Jr. Winglewish | 2 | Son | — | Ohio |
| 15 | Casmer J. Winglewish | 61 | Father | Carpenter | Ohio |
| 16 | Zena Winglewish | 63 | Mother | — | Ohio |
| 17 | Edward Koch | 70 | Head | Watchman | Indiana |
| 18 | Bee Koch | 60 | Wife | — | Mississippi |
| 19 | Edward Koch | 34 | Son | Service Man | Ohio |
| 20 | Eloise Nolan | 45 | Daughter | — | Ohio |
| 21 | John Messmer | 68 | Head | Gardner | Kentucky |
| 22 | Mary Messmer | 58 | Wife | — | Ohio |
| 23 | Earl Weightman | 40 | Head | Electric Welder | Illinois |
| 24 | Dora Weightman | 34 | Wife | — | Indiana |
| 25 | Albert Weightman | 14 | Son | — | Michigan |
| 26 | Henry Weightman | 8 | Son | — | Ohio |
| 27 | Charles W. Mulvaney | 42 | Head | Electro Typist | Ohio |
| 28 | Margaret M. Mulvaney | 65 | Mother | — | Ohio |
| 29 | Charles Berger | 76 | Head | Cabinet Maker | Germany |
| 30 | Mary Berger | 64 | Wife | — | Ohio |
| 31 | William Mcdonough | 47 | Head | Plaster | Ohio |
| 32 | Antoinette Mcdonough | 43 | Wife | — | Kentucky |
| 33 | Catherine Mcdonough | 23 | Daughter | Machine Operator | Ohio |
| 34 | Helen Mcdonough | 20 | Daughter | Saleslady | Ohio |
| 35 | William Mcdonough | 17 | Son | — | Ohio |
| 36 | Margerete Mcdonough | 15 | Daughter | — | Ohio |
| 37 | Mary Mcdonough THIS PERSON | 12 | Daughter | — | Ohio |
| 38 | Edward Henry Hampe | 32 | Head | Plumber | Ohio |
| 39 | Clara A. Hampe | 31 | Wife | — | Ohio |
| 40 | Rose Mary Hampe | 9 | Daughter | — | 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)