RT
Ray Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Columbiana-County, Ohio
Our Model Tree links this Ray Thomas across the 1920, 1930 and 1940 US Censuses in Columbiana-County, Ohio (XGBoost, ~Confirmed), with identified parents David & David — first a son (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Columbiana-County, Ohio |
| Surname | Thomas |
| Given Name | Ray D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Knox Township |
| 1935 Residence (County) | Columbiana |
| Additional Details | |
| Occupation | Farm Hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 76 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Farm Hand |
| Township / Ward | Knox Township |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ray | Age | Birth yr |
|---|---|---|---|---|
| Arthur Thomas | Son | — | 36 | ~1904 |
| Elena Thomas | Head | — | 79 | ~1861 |
| Ray Thomas | Son | — | 39 | ~1901 |
| Wallace Thomas | Son | — | 49 | ~1891 |
Census Appearances
1920
Columbiana, Ohio
Son, age 19
Columbiana, Ohio · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ray D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Columbiana, Ohio
Son, age 29
Columbiana, Ohio · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ray D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Dealer |
| Industry | Real Estate |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Columbiana-County, Ohio
Son, age 39
Columbiana-County, Ohio · implied b. ~1901 — 4 household members
| Surname | Thomas |
| Given Name | Ray D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Knox Township |
| 1935 Residence (County) | Columbiana |
| Occupation | Farm Hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 76 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Ray Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Thomas (~0.92 confidence) and father David Thomas (~0.92 confidence) and mother Elena Thomas (~0.92 confidence) and mother Rena Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Thomas
b. ~1864
Source father
● Household
· direct · ~0.92
Father
David Thomas
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Elena Thomas
b. ~1861
Source mother
● Household
· direct · ~0.92
Mother
Rena Thomas
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ray Thomas
Son · 1940 · age 39 · b. ~1901 · Ohio
★ You are viewing this record
Sibling
Wallace Thomas
Sibling · 1940 · age 49
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Thomas
Sibling · 1940 · age 36
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 — Columbiana-County, Ohio
Open full size
1940 US Federal Census — Columbiana-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03043-00477)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ford Mcquilkin | 25 | Head | Mill Man | Ohio |
| 2 | Mildred Mcquilkin | 25 | Wife | Book Keeper | Ohio |
| 3 | Walter A. Scott | 47 | Head | Brakeman | Ohio |
| 4 | Greta Scott | 43 | Wife | — | Ohio |
| 5 | Robert D. Scott | 18 | Son | — | Ohio |
| 6 | Bruce N. Scott | 11 | Son | — | Ohio |
| 7 | John D. Scott | 80 | Father | — | Ohio |
| 8 | Patrick H. Malone | 70 | Head | Retired Farmer | Ohio |
| 9 | Ida A. Malone | 68 | Wife | — | Ohio |
| 10 | Harry E. Malone | 46 | Son | Trackman | Ohio |
| 11 | Nellie A. Malone | 44 | Daughter | — | Ohio |
| 12 | Vernon Penrod | 24 | Head | Coal Miner | Ohio |
| 13 | Cleo Penrod | 19 | Wife | — | Ohio |
| 14 | Janet Penrod | 1 | Daughter | — | Ohio |
| 15 | Clark Penrod | 51 | Head | Coal Miner | Ohio |
| 16 | Mary Penrod | 43 | Wife | — | Ohio |
| 17 | Lawrence Penrod | 21 | Son | Pony Driver | Ohio |
| 18 | Eleanor Penrod | 18 | Daughter | Nider Worker | Ohio |
| 19 | Wilbur Penrod | 17 | Son | — | Ohio |
| 20 | Margaret Penrod | 15 | Daughter | — | Ohio |
| 21 | Evelyn Penrod | 7 | Daughter | — | Ohio |
| 22 | Carol Penrod | 5 | Daughter | — | Ohio |
| 23 | Glenn D. Millard | 53 | Head | Farmer | Ohio |
| 24 | Emma Millard | 49 | Wife | — | Ohio |
| 25 | Harley Millard | 21 | Son | Laborer | Ohio |
| 26 | William Millard | 16 | Son | Farm Hand | Ohio |
| 27 | George Millard | 10 | Son | — | Ohio |
| 28 | John Mattie | 64 | Head | Farmer | Ohio |
| 29 | Goldie H. Mattie | 44 | Wife | — | Ohio |
| 30 | Eunice K. Mattie | 20 | Daughter | — | Ohio |
| 31 | Earl E. Bell | 48 | Head | Farmer | Ohio |
| 32 | Goldie Bell | 46 | Wife | — | Ohio |
| 33 | Owen Brooke | 83 | Head | Retired | Ohio |
| 34 | Maria Brooke | 77 | Wife | — | Canada |
| 35 | Agnes Vernet | 51 | Daughter | House Keeper | Ohio |
| 36 | Elena Thomas | 79 | Head | — | Ohio |
| 37 | Wallace P. Thomas | 49 | Son | Welder | Ohio |
| 38 | Ray D. Thomas THIS PERSON | 39 | Son | Farm Hand | Ohio |
| 39 | Arthur M. Thomas | 36 | Son | Auto Mechanic | Ohio |
| 40 | Fernando Queren|Querin | 72 | Head | Farmer | Ohio |
Pedigree Summary
Ray + 2 siblings
Gen 1 · 4 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)