RT
Ruby Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Saline-County, Illinois
Our Model Tree links this Ruby Thomas across the 1920, 1930 and 1940 US Censuses in Saline-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Saline-County, Illinois |
| Surname | Thomas |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Harrisburg |
| 1935 Residence (County) | Saline |
| Additional Details | |
| Occupation | Recorder |
| Industry | Court house |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 416 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Recorder |
| Township / Ward | Harrisburg |
| Est. Birth Year | ~1918 |
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 Ruby | Age | Birth yr |
|---|---|---|---|---|
| Ruby Thomas | Daughter | — | 22 | ~1918 |
| Ona Thomas | Spouse | — | 42 | ~1898 |
| John Thomas | Head | — | 43 | ~1897 |
Census Appearances
1920
Saline, Illinois
Daughter, age 2
Saline, Illinois · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ruby |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Saline, Illinois
Daughter, age 12
Saline, Illinois · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Saline-County, Illinois
Daughter, age 22
Saline-County, Illinois · implied b. ~1918 — 3 household members
| Surname | Thomas |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Harrisburg |
| 1935 Residence (County) | Saline |
| Occupation | Recorder |
| Industry | Court house |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 416 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and mother Ona Thomas (~0.92 confidence) and mother Orpha Thomas (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Thomas
b. ~1897
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1897
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Ona Thomas
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Orpha Thomas
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruby Thomas
Daughter · 1940 · age 22 · b. ~1918 · Illinois
★ 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 — Saline-County, Illinois
Open full size
1940 US Federal Census — Saline-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00883-00682)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John P. Thomas | 43 | Head | Miner | Pennsylvania |
| 2 | Ona Thomas | 42 | Wife | — | Illinois |
| 3 | Ruby Thomas THIS PERSON | 22 | Daughter | Recorder | Illinois |
| 4 | Bratcher Cannon | 48 | Head | Miner | Illinois |
| 5 | Ruth Cannon | 38 | Wife | — | Illinois |
| 6 | Paul Ray Cannon | 5 | Son | — | Illinois |
| 7 | Frank Border | 39 | Head | Laborer | Illinois |
| 8 | Clara Border | 37 | Wife | — | Illinois |
| 9 | James T. Border | 16 | Son | — | Illinois |
| 10 | Robert Border | 14 | Son | — | Illinois |
| 11 | Eugene Booth | 13 | Step son | — | Illinois |
| 12 | Marion Rogers | 54 | Head | Laborer | Illinois |
| 13 | Elzie Rogers | 48 | Wife | — | Illinois |
| 14 | Bernice Rogers | 19 | Daughter | Typist | Illinois |
| 15 | Charles Rogers | 16 | Son | — | Illinois |
| 16 | Norman Rogers | 11 | Son | — | Illinois |
| 17 | Virginia Rogers | 10 | Daughter | — | Illinois |
| 18 | Michael Rogers | 8 | Son | — | Illinois |
| 19 | Curtis D. Rogers | 4 | Son | — | Illinois |
| 20 | John Raley | 61 | Head | Laborer | Kentucky |
| 21 | Mary K. Raley | 19 | Daughter | Librarian | Illinois |
| 22 | Press King | 49 | Head | Laborer | Illinois |
| 23 | Rhoda King | 42 | Wife | — | Illinois |
| 24 | Wendell King | 16 | Son | — | Illinois |
| 25 | Juanita King | 14 | Daughter | — | Illinois |
| 26 | Cora Hines | 58 | Head | — | Illinois |
| 27 | Leslie Harrison | 47 | Son in law | Miner | Illinois |
| 28 | Rosa Lee Harrison | 42 | Daughter | — | Illinois |
| 29 | Nora Hillis | 60 | Head | — | Kentucky |
| 30 | Edward Hillis | 40 | Son | Laborer | Kentucky |
| 31 | Emma Hillis | 29 | Daughter in l | — | Illinois |
| 32 | Lavon Hillis | 3 | Grand son | — | Illinois |
| 33 | Lonnie Hillis | 1 | Grand son | — | Illinois |
| 34 | Ethel Graves | 51 | Head | Teacher | Illinois |
| 35 | Gladys Kent | 21 | Niece | Teacher | Illinois |
| 36 | Charles Clark | 66 | Head | Carpenter | Illinois |
| 37 | Ethel Clark | 53 | Wife | — | Illinois |
| 38 | William Jr. Flord | 54 | Head | Asst Supt | Kentucky |
| 39 | Sallie Flord | 52 | Wife | — | Kentucky |
| 40 | Gilbert Williams | 24 | Head | Clerk Typist | Illinois |
Pedigree Summary
Ruby
Gen 1 · 5 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)