HT
Henry Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Henry Thomas across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Utah
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Thomas |
| Given Name | Henry L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Separated |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Helper |
| Industry | Thomas Electric |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 988 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Helper |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1916 |
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 Henry | Age | Birth yr |
|---|---|---|---|---|
| Harry Thomas | Head | — | 68 | ~1872 |
| Henry Thomas | Son | — | 24 | ~1916 |
| John Thomas | Son | — | 23 | ~1917 |
| Margaret Thomas | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Salt Lake, …
Son, age 4
Salt Lake, Utah · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Son, age 14
Salt Lake, Utah · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Henry L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Utah |
| Occupation | Janitor |
| Industry | Electric company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Son, age 24
Salt-Lake-County, Utah · implied b. ~1916 — 4 household members
| Surname | Thomas |
| Given Name | Henry L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Separated |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Helper |
| Industry | Thomas Electric |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 988 |
| Highest Grade | C 4 |
| 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 Henry Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Thomas (~0.92 confidence) and father Harry Thomas (~0.92 confidence) and mother Marguerite Thomas (~0.92 confidence) and mother Margaret Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Thomas
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Harry Thomas
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Marguerite Thomas
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Margaret Thomas
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Henry Thomas
Son · 1940 · age 24 · b. ~1916 · Utah
★ You are viewing this record
Sibling
John Thomas
Sibling · 1940 · age 23
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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04226-00679)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lee Taylor | 37 | Head | Roofer | Utah |
| 42 | Ruby Taylor | 33 | Wife | — | Oklahoma |
| 43 | Clinton Taylor | 6 | Son | — | Utah |
| 44 | Meredith Taylor | 2 | Daughter | — | Utah |
| 45 | Sadie Hoffman | 66 | Head | — | Georgia |
| 46 | Heber Ray Phelps | 33 | Head | Laborer | Utah |
| 47 | Ruby Phelps | 31 | Wife | — | Utah |
| 48 | Ra Laine Phelps | 1 | Daughter | — | Utah |
| 49 | Elvyn Bascom | 26 | Head | Mechanic | Utah |
| 50 | Venice Bascom | 24 | Wife | — | Utah |
| 51 | Gordon E Bascom | 0 | Son | — | Utah |
| 52 | James J De Bry | 27 | Head | Auditor | Utah |
| 53 | Ruby De Bry | 23 | Wife | — | Utah |
| 54 | Leone Stevens | 40 | Head | Stenographer | Utah |
| 55 | Brigham E Roberts | 32 | Head | Lawyer | California |
| 56 | Virginia Roberts | 28 | Wife | Lawyer Research | Utah |
| 57 | Ilas E Riter | 61 | Head | Chemist | Utah |
| 58 | Josephine Riter | 52 | Wife | — | Utah |
| 59 | Hazel Brockbank | 43 | Head | College Teacher | Utah |
| 60 | Jennie Campbell | 46 | Friend | Teacher | Utah |
| 61 | John B Mccausland | 24 | Head | Bank Clerk | Utah |
| 62 | Faye Mccausland | 22 | Wife | — | Utah |
| 63 | Allen E Johnston | 27 | Head | Clerk | Utah |
| 64 | Romania Johnston | 24 | Wife | — | Utah |
| 65 | Ben E Pope | 24 | Head | Salesman | Utah |
| 66 | Thelma Pope | 27 | Wife | Stenographer | Utah |
| 67 | Leon E Jones | 35 | Head | Salesman | Washington |
| 68 | June L Jones | 29 | Wife | Clerk | Utah |
| 69 | Donetta Jones | 7 | Daughter | — | Utah |
| 70 | Leon Jones | 5 | Son | — | Utah |
| 71 | Rock H Jones | 1 | Son | — | Utah |
| 72 | Lillian Patten | 22 | Housekeeper | Housekeeper | Utah |
| 73 | Fred J Sailor | 60 | Head | Conductor | Illinois |
| 74 | Josie Sailor | 47 | Wife | — | Utah |
| 75 | Fred Sailor | 17 | Son | — | Utah |
| 76 | Harry L Thomas | 68 | Head | Manager | Ohio |
| 77 | Margaret Thomas | 59 | Wife | — | Utah |
| 78 | Henry L Thomas THIS PERSON | 24 | Son | Helper | Utah |
| 79 | John E Thomas | 23 | Son | — | Utah |
Pedigree Summary
Henry + 1 sibling
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)