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Mary Leary — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Mary Leary across the 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Leary |
| Given Name | Mary Frances |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Sharonville Village |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Sharonville Village |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| Irene Leary | Spouse | — | 41 | ~1899 |
| Mary Leary | Daughter | — | 11 | ~1929 |
| Pauline Leary | Daughter | — | 20 | ~1920 |
| Edel Leary | Son | — | 14 | ~1926 |
| Patrick Leary | Head | — | 43 | ~1897 |
| Barbara Leary | Daughter | — | 2 | ~1938 |
| Margaret Leary | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Hamilton, Ohio
Daughter, age 1
Hamilton, Ohio · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leary |
| Given Name | Mary F |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Daughter, age 11
Hamilton-County, Ohio · implied b. ~1929 — 7 household members
| Surname | Leary |
| Given Name | Mary Frances |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Sharonville Village |
| 1935 Residence (County) | Hamilton |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| 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 Leary across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Leary
Daughter · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Pauline Leary
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edel Leary
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Leary
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Leary
Sibling · 1940 · age 18
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-t0627-03080-00620)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilma J. Whitacre | 6 | daughter | — | Ohio |
| 2 | Barbara Whitacre | 1 | daughter | — | Ohio |
| 3 | Harry D. Burks | 34 | head | Clergyman | West Virginia |
| 4 | Esther Burks | 32 | wife | Music Teacher | Indiana |
| 5 | Harry Jr. Burks | 5 | son | — | Ohio |
| 6 | James Burks | 1 | son | — | Ohio |
| 7 | Conrad C. Gandert | 54 | head | Passenger Conductor | Ohio |
| 8 | Ruth M. Gandert | 47 | wife | — | Ohio |
| 9 | William Gandert | 19 | son | Packer | Ohio |
| 10 | Yvonne Gandert | 11 | daughter | — | Ohio |
| 11 | William Richardson | 29 | head | Welder | Kentucky |
| 12 | Hannah S. Richardson | 26 | wife | — | Ohio |
| 13 | Janet Richardson | 6 | daughter | — | Ohio |
| 14 | Joan Richardson | 1 | daughter | — | Ohio |
| 15 | Patrick Leary | 43 | head | Truck Driver | Ohio |
| 16 | Irene D. Leary | 41 | wife | — | Illinois |
| 17 | Pauline Leary | 20 | daughter | Clerk | Ohio |
| 18 | Margaret Ann Leary | 18 | daughter | Nurse Worker | Ohio |
| 19 | Edel Rymond Leary | 14 | son | — | Ohio |
| 20 | Mary Frances Leary THIS PERSON | 11 | daughter | — | Ohio |
| 21 | Barbara Lee Leary | 2 | daughter | — | Ohio |
| 22 | Orrin Henry Long | 63 | head | Laborer | Ohio |
| 23 | Ethel Long | 59 | wife | — | Ohio |
| 24 | Virginia Lee Long | 31 | daughter | Teacher | Ohio |
| 25 | Fay Clark | 38 | head | Clerk-Stenographer | Ohio |
| 26 | Ruth Clark | 40 | wife | — | Ohio |
| 27 | Theda P. Clark | 20 | daughter | Hair-Worker | Ohio |
| 28 | Ruby M. Clark | 18 | daughter | — | Ohio |
| 29 | Mary L. Clark | 16 | daughter | — | Ohio |
| 30 | Jean R. Clark | 15 | daughter | — | Ohio |
| 31 | Dorothy F. Clark | 13 | daughter | — | Ohio |
| 32 | William N. Clark | 12 | son | — | Ohio |
| 33 | Betty Ann Clark | 11 | daughter | — | Ohio |
| 34 | Clifford L. Clark | 9 | son | — | Ohio |
| 35 | Robert P. Clark | 7 | son | — | Ohio |
| 36 | Ruth A. Clark | 5 | daughter | — | Ohio |
| 37 | Donald N. Clark | 3 | son | — | Ohio |
| 38 | Wesley Clark | 44 | brother | Delicatessen | Ohio |
| 39 | Valentine Leo Dooley | 47 | head | Engineer | Ohio |
| 40 | Alice M. Dooley | 46 | 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)