MK
Mary Kenney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this Mary Kenney across the 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Kenney |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown City |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Highest Grade | S 5 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Youngstown City |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Kenney | Other | — | 2 | ~1938 |
| Mary Kenney | Daughter | — | 11 | ~1929 |
| Joseph Kenney | Son | — | 24 | ~1916 |
| William Kenney | Son | — | 29 | ~1911 |
| Agnes Kenney | Spouse | — | 53 | ~1887 |
| Marie Kenney | Other | — | 24 | ~1916 |
| John Kenney | Son | — | 22 | ~1918 |
| Robert Kenney | Son | — | 18 | ~1922 |
| William Kenney | Head | — | 54 | ~1886 |
Census Appearances
1930
Mahoning, Ohio
Daughter, age 1
Mahoning, Ohio · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kenney |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mahoning-County, Ohio
Daughter, age 11
Mahoning-County, Ohio · implied b. ~1929 — 9 household members
| Surname | Kenney |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown City |
| 1935 Residence (County) | Mahoning |
| Highest Grade | S 5 |
| 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 Kenney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kenney
Daughter · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Robert Kenney
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Kenney
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kenney
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kenney
Sibling · 1940 · age 29
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 — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03270-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James F Carden | 9 | Son | — | Ohio |
| 2 | John W Carden | 8 | Son | — | Ohio |
| 3 | Ralph M Feacht | 49 | Head | Plumber | Pennsylvania |
| 4 | Ruth Feacht | 48 | Wife | — | Pennsylvania |
| 5 | Ralph M Jr Feacht | 19 | Son | Apprentice Plumber | Ohio |
| 6 | Donna Jean Feacht | 15 | Daughter | — | Ohio |
| 7 | Anton Orsnay | 64 | Head | Moulder | Czechoslovakia |
| 8 | Pauline Orsnay | 58 | Wife | — | Czechoslovakia |
| 9 | Louise Orsnay | 17 | Daughter | — | Ohio |
| 10 | Joseph Stephany | 49 | Head | Locomotive Engineer | Pennsylvania |
| 11 | Sadie Stephany | 40 | Wife | — | Ohio |
| 12 | Shirl Stephany | 15 | Son | — | Ohio |
| 13 | Nancy Stephany | 1 | Daughter | — | Ohio |
| 14 | Lydia Gerber | 48 | Sister-in-law | Cleaner | Ohio |
| 15 | Seth Wehr | 46 | Head | Helper Open Hearth | Ohio |
| 16 | Hannah Wehr | 46 | Wife | — | Ohio |
| 17 | Ruth Wehr | 19 | Daughter | New Worker | Ohio |
| 18 | David Howells | 48 | Head | Rodman Engineer | Ohio |
| 19 | Elsie Howells | 48 | Wife | — | Ohio |
| 20 | Jennie King | 32 | Niece | Filing Clerk | Ohio |
| 21 | Henry J Pallin | 64 | Head | Watchman | Germany |
| 22 | Elmyra Pallin | 26 | Daughter | Cashier | Ohio |
| 23 | William A Kenney | 54 | Head | Operating Engineer | Pennsylvania |
| 24 | Agnes Kenney | 53 | Wife | — | Pennsylvania |
| 25 | Joseph Kenney | 24 | Son | — | Ohio |
| 26 | John Kenney | 22 | Son | Apprentice Operating Engineer | Ohio |
| 27 | Robert Kenney | 18 | Son | New Worker | Ohio |
| 28 | Mary Louise Kenney THIS PERSON | 11 | Daughter | — | Ohio |
| 29 | William R Kenney | 29 | Son | Operating Engineer | Pennsylvania |
| 30 | Marie F Kenney | 24 | Daughter-in-law | — | Oregon |
| 31 | William C Kenney | 2 | Grandson | — | Ohio |
| 32 | George Elyka | 48 | Head | Leather Tacker | Austria |
| 33 | Mary Elyka | 55 | Wife | — | Austria |
| 34 | Wrong Information Given Elyka | None | M | — | — |
| 35 | Joseph Elyka | 16 | Son | — | Pennsylvania |
| 36 | Michael P Cavanaugh | 41 | Head | Steel Peeler | Pennsylvania |
| 37 | Margaret Cavanaugh | 4 | Wife | — | Pennsylvania |
| 38 | Edward M Cavanaugh | 19 | Son | Sales Clerk | Ohio |
| 39 | Donald L Cavanaugh | 9 | Son | — | Ohio |
| 40 | George Listak | 44 | Head | Millwright | Czechoslovakia |
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)