MK
Mary Kinney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Kinney across the 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 10-person household.
Age 22
b. ~1918
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Kinney |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Packer |
| Industry | Packing house |
| Class of Worker | PW |
| Hours Worked | 13 |
| Income (1939) | 442 |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Packer |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1918 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Kinney | Son | — | 14 | ~1926 |
| William Kinney | Daughter | — | 18 | ~1922 |
| William Kinney | Head | — | 43 | ~1897 |
| Evelyn Kinney | Daughter | — | 9 | ~1931 |
| Thomas Kinney | Son | — | 6 | ~1934 |
| Mary Kinney | Spouse | — | 43 | ~1897 |
| Lucille Kinney | Daughter | — | 20 | ~1920 |
| William Kinney | Son | — | 16 | ~1924 |
| Mary Kinney | Daughter | — | 22 | ~1918 |
| Phillip Kinney | Son | — | ~1940 |
Census Appearances
1930
Jefferson, Kentucky
Daughter, age 12
Jefferson, Kentucky · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kenney |
| Given Name | Marie E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Daughter, age 22
Jefferson-County, Kentucky · implied b. ~1918 — 10 household members
| Surname | Kinney |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Packer |
| Industry | Packing house |
| Class of Worker | PW |
| Hours Worked | 13 |
| Income (1939) | 442 |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Kinney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kinney
Daughter · 1940 · age 22 · b. ~1918 · Kentucky
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Sibling
Lucille Kinney
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kinney
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Kinney
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kinney
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kinney
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Kinney
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Kinney
Sibling · 1940 · age 9
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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
17 people indexed on this census page (nara:1940:m-t0627-01374-00106)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian L. Munier | 8 | Daughter | — | Kentucky |
| 2 | William C. Hopewell | 51 | Head | Upholsterer | Kentucky |
| 3 | Katherine L. Hopewell | 48 | Wife | — | Kentucky |
| 4 | Willetta J. Hopewell | 14 | Daughter | — | Kentucky |
| 5 | Elmer L. Young | 28 | Head | Repair Man | Kentucky |
| 6 | Anna L. Young | 21 | Wife | — | Georgia |
| 7 | Elmer L. Jr. Young | 4 | Son | — | Kentucky |
| 8 | William J. Kinney | 43 | Head | Inspector | Missouri |
| 9 | Mary C. Kinney | 43 | Wife | — | Kentucky |
| 10 | Mary A. Kinney THIS PERSON | 22 | Daughter | Packer | Kentucky |
| 11 | Lucille C. Kinney | 20 | Daughter | Packer | Kentucky |
| 12 | William F. Kinney | 18 | Daughter | New Worker | Kentucky |
| 13 | William J. Jr. Kinney | 16 | Son | New Worker | Kentucky |
| 14 | John J. Kinney | 14 | Son | — | Kentucky |
| 15 | Evelyn V. Kinney | 9 | Daughter | — | Kentucky |
| 16 | Thomas L. Kinney | 6 | Son | — | Kentucky |
| 17 | Phillip E. Kinney | 0 | Son | — | Kentucky |
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)