RT
Ralph Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Franklin-County, Ohio
Our Model Tree links this Ralph Thomas across the 1910, 1920, 1930 and 1940 US Censuses in Franklin-County, Ohio (XGBoost, ~Confirmed), with identified parents Carrie & Carrie — first a son (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Male
Son
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Franklin-County, Ohio |
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Columbus |
| 1935 Residence (County) | Franklin |
| Additional Details | |
| Occupation | Salesman |
| Industry | Radio |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Salesman |
| Township / Ward | Columbus |
| Est. Birth Year | ~1909 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Ralph Thomas | Son | — | 31 | ~1909 |
| Harry Thomas | Head | — | 54 | ~1886 |
| Mary Thomas | Other | — | 23 | ~1917 |
| Carrie Thomas | Spouse | — | 55 | ~1885 |
| Ida Thomas | Daughter | — | 28 | ~1912 |
Census Appearances
1910
Franklin, Ohio
Son, age
Franklin, Ohio · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Speaks English | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Franklin, Ohio
Son, age 11
Franklin, Ohio · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Franklin, Ohio
Son, age 21
Franklin, Ohio · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Driver |
| Industry | Bakery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Franklin-County, Ohio
Son, age 31
Franklin-County, Ohio · implied b. ~1909 — 5 household members
| Surname | Thomas |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Columbus |
| 1935 Residence (County) | Franklin |
| Occupation | Salesman |
| Industry | Radio |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Ralph Thomas across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Carrie Thomas (~0.92 confidence) and mother Carrie Thomas (~0.92 confidence) and mother Carrie Thomas (~0.92 confidence) and father Harry Thomas (~0.92 confidence) and father Harry Thomas (~0.92 confidence) and father Harry Thomas (~0.92 confidence) and mother Ruth Thomas (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Carrie Thomas
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Carrie Thomas
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Carrie Thomas
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Harry Thomas
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Harry Thomas
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Harry Thomas
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Ruth Thomas
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Thomas
Son · 1940 · age 31 · b. ~1909 · Ohio
★ You are viewing this record
Sibling
Ida Thomas
Sibling · 1940 · age 28
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 — Franklin-County, Ohio
Open full size
1940 US Federal Census — Franklin-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03250-00712)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Parker B Snider | 37 | Head | Engineer | Ohio |
| 2 | Genevieve B Snider | 35 | Wife | — | Ohio |
| 3 | Barbara F Snider | 12 | Daughter | — | Ohio |
| 4 | Donna S Snider | 9 | Daughter | — | Ohio |
| 5 | Blanche E O Snider | 64 | Mother | — | Ohio |
| 6 | Harry Thomas | 54 | Head | Conductor | Ohio |
| 7 | Carrie Thomas | 55 | Wife | — | Ohio |
| 8 | Ralph Thomas THIS PERSON | 31 | Son | Salesman | Ohio |
| 9 | Mary Thomas | 23 | Daughter-in-law | Packer | Ohio |
| 10 | Ida E Thomas | 28 | Daughter | Inspector | Ohio |
| 11 | Sylvia D Moore | 69 | Head | — | Ohio |
| 12 | Earl E Steel | 48 | Son | Owner | Ohio |
| 13 | Catherine Steel | 40 | Daughter-in-law | Waitress | Ohio |
| 14 | Albert L Hoffman | 74 | Head | Clerk | Ohio |
| 15 | Mattie Hoffman | 73 | Wife | — | Maryland |
| 16 | Eudora Hoffman | 39 | Daughter | — | Ohio |
| 17 | David A Hoffman | 14 | Grand-son | — | Ohio |
| 18 | Donald L Hoffman | 12 | Grand-son | — | Ohio |
| 19 | Wernhart Voegelin | 66 | Head | Foreman | Switzerland |
| 20 | Sarah M Voegelin | 69 | Wife | — | Ohio |
| 21 | Philip H Kennedy | 70 | Head | Own | Ohio |
| 22 | Barbara Kennedy | 72 | Wife | — | Ohio |
| 23 | Samuel Henderson | 56 | Head | Agent | Ohio |
| 24 | Rose Henderson | 48 | Wife | — | Ohio |
| 25 | Ralph Des Elm | 52 | Head | Salesman | Ohio |
| 26 | Helen Des Elm | 51 | Wife | — | Ohio |
| 27 | Richard R Des Elm | 21 | Son | — | Ohio |
| 28 | Hal Des Elm | 15 | Son | — | Ohio |
| 29 | Frank O Ackers | 54 | Head | Secretary | Ohio |
| 30 | Lulu M Ackers | 53 | Wife | — | Ohio |
| 31 | Harold Everhart | 47 | Head | Engineer | Ohio |
| 32 | Amelia Everhart | 48 | Wife | — | Ohio |
| 33 | Gretchen Everhart | 17 | Daughter | — | Ohio |
| 34 | Head Dixon-Harold | None | M | State Highway | — |
| 35 | Ida M Dixon-Harold | 28 | Wife | Saleslady | Ohio |
| 36 | Clyde G Trexler | 54 | Head | Foreman | Ohio |
| 37 | Mabel F Trexler | 54 | Wife | — | Ohio |
| 38 | Virginia L Trexler | 21 | Daughter | Stenographer | Ohio |
| 39 | James Grierson | 54 | Head | Credit Mgr | Ohio |
| 40 | Lena L Grierson | 44 | Wife | — | Ohio |
Pedigree Summary
Ralph + 1 sibling
Gen 1 · 7 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)