MG
Mary Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Gray across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 2-person household.
Age 65
b. ~1875
Female
Head
Born: Kentucky
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1875 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Gray | Head | — | 65 | ~1875 |
| Sanford Gray | Son | — | 25 | ~1915 |
Census Appearances
1920
Jefferson, Kentucky
Head, age 50
Jefferson, Kentucky · implied b. ~1870 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Head, age 58
Jefferson, Kentucky · implied b. ~1872 — 33 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| Age at First Marriage | 28 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Proprietor |
| Industry | Boarding House |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 40000 |
| Radio Set | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 65
Jefferson-County, Kentucky · implied b. ~1875 — 2 household members
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gray
Head · 1940 · age 65 · b. ~1875 · Kentucky
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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
40 people indexed on this census page (nara:1940:m-t0627-01374-00758)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lucille Hoffman | 17 | Daughter | — | Kansas |
| 2 | Carl Gaskill | 44 | Head | Factory Worker | Indiana |
| 3 | Bernice Gaskill | 41 | Wife | — | Indiana |
| 4 | Richard Gaskill | 20 | Son | C. C. C. | Indiana |
| 5 | James Gaskill | 18 | Son | Laborer | Indiana |
| 6 | Robert Gaskill | 15 | Son | — | Indiana |
| 7 | Eugene Gaskill | 13 | Son | — | Kentucky |
| 8 | Grace Gaskill | 12 | Daughter | — | Kentucky |
| 9 | Dixie Gaskill | 10 | Daughter | — | Kentucky |
| 10 | Mary Gaskill | 5 | Daughter | — | Kentucky |
| 11 | Nancy Gaskill | 7 | Daughter | — | Kentucky |
| 12 | Thomas Gaskill | 2 | Son | — | Kentucky |
| 13 | David Gaskill | 0 | Son | — | Kentucky |
| 14 | Leonard Miller | 49 | Head | Motorman | Kentucky |
| 15 | Susie Miller | 59 | Wife | — | Germany |
| 16 | Annie Yow | 60 | Head | — | Kentucky |
| 17 | Joseph Russell | 75 | Head | — | Kentucky |
| 18 | Catherine Russell | 70 | Wife | — | Kentucky |
| 19 | Louis Russell | 34 | Son | Stock Room Clerk | Kentucky |
| 20 | Catherine Russell | 30 | Daughter | — | Kentucky |
| 21 | Leslie Prather | 29 | Head | Laborer | Kentucky |
| 22 | Dorothy Prather | 20 | Wife | — | Kentucky |
| 23 | Clara Schweins | 64 | Head | — | Kentucky |
| 24 | Robert Schweins | 30 | Son | Laborer | Kentucky |
| 25 | Maurice Schweins | 26 | Daughter-in-law | Laborer | Kentucky |
| 26 | William Record | 32 | Head | Laborer | Kentucky |
| 27 | Cleo Record | 25 | Wife | Laborer | Kentucky |
| 28 | William Jr. Record | 5 | Son | — | Kentucky |
| 29 | Jane Record | 4 | Daughter | — | Kentucky |
| 30 | Georgie Record | 2 | Daughter | — | Kentucky |
| 31 | Adolph Mangeot | 20 | Head | Carpenter | Kentucky |
| 32 | Mary Mangeot | 21 | Wife | Beauty Operator | Indiana |
| 33 | Ola Kelly | 41 | Head | Laborer | Kentucky |
| 34 | Maymie Kelly | 42 | Wife | — | Kentucky |
| 35 | Mary Gray THIS PERSON | 65 | Head | — | Kentucky |
| 36 | Sanford Gray | 25 | Son | Brass Assembler | Kentucky |
| 37 | Ross Meredith | 26 | Head | Electrician | Tennessee |
| 38 | Grace Meredith | 21 | Wife | — | Tennessee |
| 39 | Carolyn Meredith | 1 | Daughter | — | Tennessee |
| 40 | — | None | — | — | — |
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)