RT
Ray Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Ray Thomas across the 1910, 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents Zephaniah & Alvira — first a head (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Thomas |
| Given Name | Ray S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Precinct 4 |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Electrician Foreman |
| Industry | Smelting & Refining |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2480 |
| Highest Grade | C-2 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Electrician Foreman |
| Township / Ward | Precinct 4 |
| Est. Birth Year | ~1892 |
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 Ray | Age | Birth yr |
|---|---|---|---|---|
| Josephine Thomas | Spouse | — | 44 | ~1896 |
| Ray Thomas | Head | — | 48 | ~1892 |
| Allen Thomas | Son | — | 19 | ~1921 |
Census Appearances
1910
Salt Lake, …
Son, age 18
Salt Lake, Utah · implied b. ~1892 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Raymond S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Wales |
| Mother's Birthplace | Utah |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1920
Salt Lake, …
Son, age 28
Salt Lake, Utah · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Raymond S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Utah |
| Father's Birthplace | Wales |
| Mother's Birthplace | Utah |
| Occupation | Electrician |
| Industry | Smelter |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
Head, age 38
Salt Lake, Utah · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Raymond S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 23 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Utah |
| Occupation | Electrician |
| Industry | Copper Smelter |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Veteran | no |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Head, age 48
Salt-Lake-County, Utah · implied b. ~1892 — 3 household members
| Surname | Thomas |
| Given Name | Ray S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Precinct 4 |
| 1935 Residence (County) | Salt Lake |
| Occupation | Electrician Foreman |
| Industry | Smelting & Refining |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2480 |
| Highest Grade | C-2 |
| 1935 Residence | Same place |
| 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 Ray Thomas across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Zephaniah Thomas (~0.92 confidence) and mother Alvira Thomas (~0.92 confidence) and mother Marie Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Zephaniah Thomas
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Alvira Thomas
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Marie Thomas
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ray Thomas
Head · 1940 · age 48 · b. ~1892 · 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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04215-00939)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lavenia Van Vleet | 44 | Wife | — | Utah |
| 2 | James Van Vleet | 23 | Son | Operator | Wyoming |
| 3 | Harold Van Vleet | 21 | Son | Steam Shovel Operator | Wyoming |
| 4 | Maurice Van Vleet | 18 | Son | New Worker | Wyoming |
| 5 | Leland Van Vleet | 11 | Son | — | Utah |
| 6 | Arthur Williams | 29 | Head | Rigger | Utah |
| 7 | Vilda Williams | 24 | Wife | — | Utah |
| 8 | Le Ray Williams | 5 | Son | — | Utah |
| 9 | Wayne Williams | 2 | Son | — | Utah |
| 10 | Glenn Clays | 33 | Head | Work Foreman | Utah |
| 11 | Vora Clays | 34 | Wife | — | Florida |
| 12 | Russell Clays | 11 | Son | — | Utah |
| 13 | Geraldine Clays | 9 | Daughter | — | Utah |
| 14 | Kenneth Clays | 9 | Son | — | Utah |
| 15 | Robert Monger | 42 | Head | Foundry Pattern Maker | New Jersey |
| 16 | Edna Monger | 41 | Wife | — | Utah |
| 17 | Colleen Monger | 19 | Daughter | — | Utah |
| 18 | Robert Monger | 17 | Son | — | Utah |
| 19 | Russell Monger | 13 | Son | — | Utah |
| 20 | Shirley Monger | 11 | Daughter | — | Utah |
| 21 | Elmer Anthony | 32 | Head | Pipe Fitter | Utah |
| 22 | Thelma Anthony | 31 | Wife | — | Utah |
| 23 | Katherine Anthony | 11 | Daughter | — | Utah |
| 24 | Robert Anthony | 6 | Son | — | Utah |
| 25 | Frank Bolton | 29 | Head | Helper Mechanical | Utah |
| 26 | Leona Bolton | 31 | Wife | — | Utah |
| 27 | Gerald Bolton | 4 | Son | — | Utah |
| 28 | Franklin Dahlquist | 24 | Head | Chemist Analytical | Utah |
| 29 | Ann Dahlquist | 21 | Wife | — | Utah |
| 30 | Merann Dahlquist | 1 | Daughter | — | Utah |
| 31 | Ray S. Thomas THIS PERSON | 48 | Head | Electrician Foreman | Utah |
| 32 | Josephine Thomas | 44 | Wife | — | Utah |
| 33 | Allen Thomas | 19 | Son | — | Utah |
| 34 | Duane Walker | 43 | Head | Electrician | Utah |
| 35 | Erma Walker | 42 | Wife | — | Utah |
| 36 | George Walker | 18 | Son | — | Utah |
| 37 | Archie Mcdermiad | 43 | Head | Blacksmith | Utah |
| 38 | Blenda Mcdermiad | 44 | Wife | — | New York |
| 39 | Edith Mcdermiad | 17 | Daughter | — | Utah |
| 40 | Helen Mcdermiad | 15 | Daughter | — | Utah |
Related Census Records
Pedigree Summary
Ray
Gen 1 · 3 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)