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Ruby Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carter-County, Kentucky
Our Model Tree links this Ruby Thomas across the 1930 and 1940 US Censuses in Carter-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carter-County, Kentucky |
| Surname | Thomas |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 4, Upper Tygart |
| 1935 Residence (County) | Carter |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 4 Upper Tygart |
| Est. Birth Year | ~1925 |
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 Ruby | Age | Birth yr |
|---|---|---|---|---|
| Bobby Thomas | Son | — | 1 | ~1939 |
| Mildred Thomas | Daughter | — | 16 | ~1924 |
| James Thomas | Son | — | 3 | ~1937 |
| Allic Thomas | Head | — | 37 | ~1903 |
| Betty Thomas | Son | — | 5 | ~1935 |
| Juanita Thomas | Daughter | — | 9 | ~1931 |
| Goldie Thomas | Spouse | — | 34 | ~1906 |
| Wilma Thomas | Daughter | — | 7 | ~1933 |
| Petrie Thomas | Son | — | 11 | ~1929 |
| Ruby Thomas | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Carter, Kentucky
Daughter, age 5
Carter, Kentucky · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Carter-County, Kentucky
Daughter, age 15
Carter-County, Kentucky · implied b. ~1925 — 10 household members
| Surname | Thomas |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 4, Upper Tygart |
| 1935 Residence (County) | Carter |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 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 Ruby Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruby Thomas
Daughter · 1940 · age 15 · b. ~1925 · Kentucky
★ You are viewing this record
Sibling
James Thomas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Thomas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bobby Thomas
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Thomas
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilma Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Thomas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Petrie Thomas
Sibling · 1940 · age 11
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 — Carter-County, Kentucky
Open full size
1940 US Federal Census — Carter-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01292-00452)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William H Smith | 40 | Head | Farmer | Kentucky |
| 2 | Audra Smith | 24 | Wife | — | Kentucky |
| 3 | Lillian Smith | 6 | Daughter | — | Kentucky |
| 4 | Deloris Smith | 4 | Daughter | — | Kentucky |
| 5 | Lecta Smith | 1 | Daughter | — | Kentucky |
| 6 | Emery Mabry | 41 | Head | Farmer | Kentucky |
| 7 | Nella Mabry | 35 | Wife | — | Kentucky |
| 8 | Beatrice Mabry | 14 | Daughter | — | Kentucky |
| 9 | Earl Mabry | 4 | Son | — | Kentucky |
| 10 | Lillian Mabry | 2 | Daughter | — | Kentucky |
| 11 | John Waddell | 63 | Head | Farmer | Kentucky |
| 12 | Ella Waddell | 65 | Wife | — | Kentucky |
| 13 | Thomas Erwin Waddell | 7 | Son | — | Kentucky |
| 14 | James Lewis | 68 | Head | Farmer | Kentucky |
| 15 | Armitha Lewis | 65 | Wife | — | Kentucky |
| 16 | Willie Tiffe | 60 | Head | Farmer | Kentucky |
| 17 | Ida Tiffe | 54 | Wife | — | Kentucky |
| 18 | Dean George Tiffe | 16 | Step-son | — | Kentucky |
| 19 | Anna Tiffe | 14 | Step-daughter | — | Kentucky |
| 20 | Ben Wilson | 40 | Head | Farmer | Kentucky |
| 21 | Bessie Wilson | 38 | Wife | — | Kentucky |
| 22 | Homer L Wilson | 7 | Son | — | Kentucky |
| 23 | Lambert Elmer Wilson | 19 | Lodger | — | Kentucky |
| 24 | Allic Thomas | 37 | Head | Laborer | Kentucky |
| 25 | Goldie Thomas | 34 | Wife | — | Kentucky |
| 26 | Mildred Thomas | 16 | Daughter | — | Kentucky |
| 27 | Ruby Thomas THIS PERSON | 15 | Daughter | — | Kentucky |
| 28 | Petrie Thomas | 11 | Son | — | Kentucky |
| 29 | Juanita Thomas | 9 | Daughter | — | Kentucky |
| 30 | Wilma Thomas | 7 | Daughter | — | Kentucky |
| 31 | Betty Thomas | 5 | Son | — | Kentucky |
| 32 | James Thomas | 3 | Son | — | Kentucky |
| 33 | Bobby Thomas | 1 | Son | — | Kentucky |
| 34 | John Mcdaniel | 63 | Head | Farmer | Kentucky |
| 35 | Lucy Mcdaniel | 56 | Wife | — | Kentucky |
| 36 | Willie Mcdaniel | 22 | Son | Farm Labor | Kentucky |
| 37 | Henry Mcdaniel | 19 | Son | — | Kentucky |
| 38 | Avery Mcdaniel | 17 | Son | — | Kentucky |
| 39 | Atley Mcdaniel | 16 | Son | — | Kentucky |
| 40 | Robert Waddell | 34 | Head | Farmer | 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)