DT
Donald Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mercer-County, West Virginia
Our Model Tree links this Donald Thomas across the 1920, 1930 and 1940 US Censuses in Mercer-County, West Virginia (XGBoost, ~Confirmed), with identified parents Charles & Minnie — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: West Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, West Virginia |
| Surname | Thomas |
| Given Name | Donald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Beaver Pond District |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Occupation | Laborer |
| Township / Ward | Beaver Pond District |
| Est. Birth Year | ~1910 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Myrtle Thomas | Spouse | — | 35 | ~1905 |
| Donald Thomas | Son | — | 2 | ~1938 |
| Donald Thomas | Head | — | 30 | ~1910 |
Census Appearances
1920
Mercer, West …
Son, age 10
Mercer, West Virginia · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | West Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1930
Mercer, West …
Son, age 20
Mercer, West Virginia · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | West Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Can Read/Write | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
Mercer-County, West …
Head, age 30
Mercer-County, West Virginia · implied b. ~1910 — 3 household members
| Surname | Thomas |
| Given Name | Donald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Beaver Pond District |
| 1935 Residence (County) | Mercer |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 Donald Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Thomas (~0.92 confidence) and mother Minnie Thomas (~0.92 confidence) and mother Virginia Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Thomas
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Minnie Thomas
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Virginia Thomas
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Thomas
Head · 1940 · age 30 · b. ~1910 · West Virginia
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, West Virginia
Open full size
1940 US Federal Census — Mercer-County, West Virginia
Page Contents
24 people indexed on this census page (nara:1940:m-t0627-04428-00602)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Thomas | 77 | Head | Farmer | West Virginia |
| 2 | Minnie Thomas | 67 | Wife | — | West Virginia |
| 3 | Ernest Thomas | 23 | Son | Laborer | West Virginia |
| 4 | Donald Thomas THIS PERSON | 30 | Head | Laborer | West Virginia |
| 5 | Myrtle Thomas | 35 | Wife | — | Virginia |
| 6 | Donald Jr Thomas | 2 | Son | — | West Virginia |
| 7 | James Mcintosh | 33 | Head | Mechanic | Virginia |
| 8 | Lena Mcintosh | 30 | Wife | — | West Virginia |
| 9 | William E Mcintosh | 10 | Son | — | West Virginia |
| 10 | Shirley Ratcliff | 31 | Head | Mechanic | West Virginia |
| 11 | Audrey Ratcliff | 29 | Wife | — | West Virginia |
| 12 | Thomas E Ratcliff | 6 | Son | — | West Virginia |
| 13 | Shirley Ann Ratcliff | 4 | Daughter | — | West Virginia |
| 14 | Clarence Woody | 28 | Head | Brakeman | West Virginia |
| 15 | Emma Woody | 31 | Wife | — | West Virginia |
| 16 | Joe M Woody | 5 | Son | — | West Virginia |
| 17 | Della Woody | 2 | Daughter | — | West Virginia |
| 18 | John Oliver | 58 | Head | — | West Virginia |
| 19 | Mary Oliver | 56 | Daughter | — | West Virginia |
| 20 | Bert Thomas | 60 | Head | Farmer | West Virginia |
| 21 | Mary Thomas | 42 | Wife | — | Virginia |
| 22 | Eldridge Hensley | 21 | Stepson | — | Virginia |
| 23 | Emmaline Pauley | 82 | Mother-in-law | — | Virginia |
| 24 | Margaret Brock | 77 | Boarder | Housekeeper | Virginia |
Pedigree Summary
Donald
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)