JT
Jack Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duchesne-County, Utah
Our Model Tree links this Jack Thomas across the 1920, 1930 and 1940 US Censuses in Duchesne-County, Utah (XGBoost, ~Confirmed), with identified parents Myron & Wesley — first a son (b.~1915), then head of a 2-person household.
Age 25
b. ~1915
Male
Son
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Duchesne-County, Utah |
| Surname | Thomas |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Roosevelt City |
| 1935 Residence (County) | Duchesne |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 112 |
| Highest Grade | No 5 |
| 1935 Residence | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Laborer |
| Township / Ward | Roosevelt City |
| 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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Jack Thomas | Son | — | 25 | ~1915 |
| Minnie Thomas | Head | — | 49 | ~1891 |
Census Appearances
1920
Duchesne, Utah
Son, age 5
Duchesne, Utah · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Jack R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Colorado |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Duchesne, Utah
Son, age 15
Duchesne, Utah · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Jack A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Idaho |
| Mother's Birthplace | Colorado |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Duchesne-County, Utah
Son, age 25
Duchesne-County, Utah · implied b. ~1915 — 2 household members
| Surname | Thomas |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Roosevelt City |
| 1935 Residence (County) | Duchesne |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 112 |
| Highest Grade | No 5 |
| 1935 Residence | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Jack Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Myron Thomas (~0.92 confidence) and father Wesley Thomas (~0.92 confidence) and mother Minnie Thomas (~0.92 confidence) and mother Minnie Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Myron Thomas
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Wesley Thomas
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Minnie Thomas
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Minnie Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jack Thomas
Son · 1940 · age 25 · b. ~1915 · Utah
★ 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 — Duchesne-County, Utah
Open full size
1940 US Federal Census — Duchesne-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04212-00538)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lucille Young | 21 | Sister-in-law | Designer | Arizona |
| 2 | Cecil Jenkins | 21 | Head | Farming | Utah |
| 3 | Berta R. Jenkins | 20 | Wife | Saleslady | Utah |
| 4 | Anthony Scholes | 36 | Head | Janitor | Utah |
| 5 | Chloris B. Scholes | 35 | Wife | Saleslady | Utah |
| 6 | Ray C. Scholes | 13 | Son | — | Utah |
| 7 | Bonnie Jean Scholes | 10 | Daughter | — | Utah |
| 8 | Kent C. Scholes | 2 | Son | — | Utah |
| 9 | C. L. Ashton | 48 | Head | Merchant | Utah |
| 10 | Hazel Ashton | 43 | Wife | Saleslady | Utah |
| 11 | Harold Birtcher | 27 | Head | Truck Driver | Utah |
| 12 | Florence Birtcher | 24 | Wife | — | Utah |
| 13 | Brent Birtcher | 1 | Son | — | Utah |
| 14 | Clair Hopkins | 26 | Head | Supervisor | Utah |
| 15 | Boneta Hopkins | 25 | Wife | — | Wyoming |
| 16 | Clair Ross Hopkins | 2 | Son | — | Utah |
| 17 | John R. Boren | 29 | Head | Physician & Surgeon | Utah |
| 18 | Marcia Boren | 27 | Wife | — | Utah |
| 19 | Homer B. Edward | 55 | Head | Accountant | Canada |
| 20 | Martha S. Edward | 55 | Wife | Book Keeper | Utah |
| 21 | William H. Edward | 17 | Son | — | Idaho |
| 22 | John Winn | 25 | Head | Attendant | Utah |
| 23 | Bessie Winn | 21 | Wife | — | Utah |
| 24 | Norman Winn | 2 | Son | — | Utah |
| 25 | Jesse C. Butcher | 55 | Head | Farmer | West Virginia |
| 26 | Stella R. Butcher | 52 | Wife | — | West Virginia |
| 27 | Hazel Butcher | 29 | Daughter | Manager | West Virginia |
| 28 | Audrey Butcher | 27 | Daughter | — | Utah |
| 29 | Audrey Butcher | 16 | Daughter | — | Utah |
| 30 | Lawrence Butcher | 14 | Son | — | Utah |
| 31 | Ulah Butcher | 13 | Daughter | — | Utah |
| 32 | Carroll Robbins | 40 | Head | Truck Driver | Illinois |
| 33 | Lotta Robbins | 41 | Wife | Cashier | Minnesota |
| 34 | Helen Tom Robbins | 63 | Uncle | — | Iowa |
| 35 | Alvin J. Teuscher | 40 | Head | Principal | Idaho |
| 36 | Talitha Teuscher | 37 | Wife | — | Idaho |
| 37 | Deloy Teuscher | 6 | Son | — | Idaho |
| 38 | Galvin Teuscher | 1 | Son | — | Utah |
| 39 | Minnie Thomas | 49 | Head | — | Colorado |
| 40 | Jack Thomas THIS PERSON | 25 | Son | Laborer | Utah |
Pedigree Summary
Jack
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)