AT
Ada Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harlan-County, Kentucky
Our Model Tree links this Ada Thomas across the 1930 and 1940 US Censuses in Harlan-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 11-person household.
Age 11
b. ~1929
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harlan-County, Kentucky |
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist. 2 |
| 1935 Residence (County) | Harlan |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 2 |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ada | Age | Birth yr |
|---|---|---|---|---|
| Arlie Thomas | Son | — | 3 | ~1937 |
| Ada Thomas | Daughter | — | 11 | ~1929 |
| Lula Thomas | Spouse | — | 38 | ~1902 |
| Arthur Thomas | Son | — | 13 | ~1927 |
| Lloyd Thomas | Head | — | 43 | ~1897 |
| Gurtis Thomas | Son | — | 15 | ~1925 |
| Martha Thomas | Daughter | — | 9 | ~1931 |
| Ernest Thomas | Son | — | 5 | ~1935 |
| Mary Thomas | Daughter | — | 7 | ~1933 |
| Alvin Thomas | Son | — | 17 | ~1923 |
| Shirley Thomas | Son | — | 1 | ~1939 |
Census Appearances
1930
Harlan, Kentucky
Daughter, age 2
Harlan, Kentucky · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Harlan-County, Kentucky
Daughter, age 11
Harlan-County, Kentucky · implied b. ~1929 — 11 household members
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist. 2 |
| 1935 Residence (County) | Harlan |
| Highest Grade | No 3 |
| 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 Ada Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ada Thomas
Daughter · 1940 · age 11 · b. ~1929 · Kentucky
★ You are viewing this record
Sibling
Arthur Thomas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Thomas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Thomas
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Thomas
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gurtis Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arlie Thomas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Thomas
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 — Harlan-County, Kentucky
Open full size
1940 US Federal Census — Harlan-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01314-00092)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Green Madden | 55 | Head | Car Driver | Kentucky |
| 42 | Patsy Madden | 38 | Wife | — | Virginia |
| 43 | May Madden | 14 | Daughter | — | Kentucky |
| 44 | Nora Madden | 9 | Daughter | — | Kentucky |
| 45 | Winston Poe | 31 | Head | Coal Loader | Kentucky |
| 46 | Mella Poe | 17 | Wife | — | Kentucky |
| 47 | Glen Poe | 1 | Son | — | Kentucky |
| 48 | Ernest Mullins | 47 | Head | Machine Runner | Kentucky |
| 49 | Edna Mullins | 37 | Wife | — | Kentucky |
| 50 | Charlie Mullins | 16 | Son | New Worker | Kentucky |
| 51 | Harlan Mullins | 15 | Son | — | Kentucky |
| 52 | Ernest Jr Mullins | 13 | Son | — | Kentucky |
| 53 | Lenial Mullins | 12 | Son | — | Kentucky |
| 54 | Harriet Mullins | 10 | Daughter | — | Kentucky |
| 55 | Jessie Mullins | 7 | Daughter | — | Kentucky |
| 56 | Ernestine Mullins | 4 | Daughter | — | Kentucky |
| 57 | Lloyd Thomas | 43 | Head | Tipple Man | Kentucky |
| 58 | Lula Thomas | 38 | Wife | — | Kentucky |
| 59 | Alvin Thomas | 17 | Son | New Worker | Kentucky |
| 60 | Gurtis Thomas | 15 | Son | — | Kentucky |
| 61 | Arthur Thomas | 13 | Son | — | Kentucky |
| 62 | Ada Thomas THIS PERSON | 11 | Daughter | — | Kentucky |
| 63 | Martha Thomas | 9 | Daughter | — | Kentucky |
| 64 | Mary Thomas | 7 | Daughter | — | Kentucky |
| 65 | Ernest Thomas | 5 | Son | — | Kentucky |
| 66 | Arlie Thomas | 3 | Son | — | Kentucky |
| 67 | Shirley Thomas | 1 | Son | — | Kentucky |
| 68 | Lloyd Thomas | 31 | Head | Timber Man | Kentucky |
| 69 | Georgia Thomas | 18 | Wife | — | Kentucky |
| 70 | Ernest Thomas | 0 | Son | — | Kentucky |
| 71 | Ernest Ellison | 40 | Head | Braddish Man | Kentucky |
| 72 | Stella Ellison | 34 | Wife | — | Tennessee |
| 73 | Marvin Ellison | 8 | Son | — | Kentucky |
| 74 | Marylyn Ellison | 4 | Daughter | — | Kentucky |
| 75 | John Preech | 39 | Head | Coal Loader | Kentucky |
| 76 | Viola Preech | 36 | Wife | — | Tennessee |
| 77 | Mary Preech | 11 | Daughter | — | Kentucky |
| 78 | Paul Preech | 7 | Son | — | Kentucky |
| 79 | Willard Preech | 1 | Son | — | Kentucky |
| 80 | Billy Preech | 1 | Son | — | Kentucky |
Related Census Records
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)