RT
Ruth Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ruth Thomas across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Frank & Hattie — first a spouse (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Thomas |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Palos Park Village |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Palos Park Village |
| Est. Birth Year | ~1915 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Nancy Thomas | Daughter | — | 2 | ~1938 |
| Warren Thomas | Head | — | 30 | ~1910 |
| Gary Thomas | Son | — | 6 | ~1934 |
| Ruth Thomas | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Cook, Illinois
Daughter, age 4
Cook, Illinois · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Penn |
| Mother's Birthplace | Illinois |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 14
Cook, Illinois · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 25
Cook-County, Illinois · implied b. ~1915 — 4 household members
| Surname | Thomas |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Palos Park Village |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | H 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 Ruth Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Thomas (~0.92 confidence) and mother Hattie Thomas (~0.92 confidence) and father James Thomas (~0.92 confidence) and mother Emma Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Thomas
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Hattie Thomas
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
James Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Emma Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Thomas
Spouse · 1940 · age 25 · b. ~1915 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00786-00477)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Carl R. Quick | 43 | Head | Sales Manager | Ohio |
| 3 | Geraldine Q. Quick | 39 | Wife | — | Ohio |
| 4 | John Quick | 13 | Son | — | Missouri |
| 5 | William Quick | 4 | Son | — | Missouri |
| 6 | Ida Henderson | 76 | Mother-in-law | — | Ohio |
| 7 | Maggie Higginson | 42 | House maid | House Maid | Kentucky |
| 8 | Archie J. Hunter | 37 | Head | Metallurgist | Indiana |
| 9 | Harriet Hunter | 28 | Wife | — | Illinois |
| 10 | Judith Hunter | 5 | Daughter | — | Illinois |
| 11 | George Schuster | 44 | Head | Sales Engineer | Illinois |
| 12 | Mildred A. Schuster | 45 | Wife | — | Illinois |
| 13 | George Jr. Schuster | 17 | Son | — | Illinois |
| 14 | Gail Schuster | 13 | Daughter | — | Illinois |
| 15 | Frank Swanson | 69 | Head | Laborer | Sweden |
| 16 | Anna M. Swanson | 65 | Wife | — | Michigan |
| 17 | Chas. Foster | 56 | Head | Salesman | Illinois |
| 18 | Roddie Foster | 37 | Wife | — | Louisiana |
| 19 | Andrew Kluck | 44 | Head | Restaurant | Illinois |
| 20 | Frances Kluck | 35 | Wife | — | Illinois |
| 21 | Gerald Kluck | 9 | Son | — | Illinois |
| 22 | Judith Kluck | 2 | Daughter | — | Illinois |
| 23 | Evelyn Brown | 22 | Maid | House Maid | Illinois |
| 24 | Edmund Mahoney | 43 | Head | Contractor & Building | Illinois |
| 25 | Dorothy Q. Mahoney | 43 | Wife | — | Iowa |
| 26 | Nelle Moore | 70 | Sister-in-law | — | Iowa |
| 27 | Logan Furry | 42 | Head | Receiving Clerk | Indiana |
| 28 | Mary Furry | 41 | Wife | — | Illinois |
| 29 | Richard Furry | 14 | Son | — | Illinois |
| 30 | Mary Margaret Furry | 11 | Daughter | — | Illinois |
| 31 | Mary Barnes | 75 | Head | — | Illinois |
| 32 | Rosemary Barnes | 20 | Daughter | — | Illinois |
| 33 | Warren A. Thomas | 30 | Head | Mechanic | Illinois |
| 34 | Ruth Thomas THIS PERSON | 25 | Wife | — | Illinois |
| 35 | Gary Thomas | 6 | Son | — | Illinois |
| 36 | Nancy Thomas | 2 | Daughter | — | Illinois |
| 37 | Bertha H. Thomas | 59 | Head | — | Illinois |
| 38 | Jack Martin | 29 | Head | Fender & Body | Illinois |
| 39 | Madeline Martin | 21 | Wife | — | Alabama |
| 40 | Allan Martin | 2 | Son | — | Illinois |
Pedigree Summary
Ruth
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)