AT
Arthur Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Arthur Thomas across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed), with identified parents Arthur & Anthony — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Thomas |
| Given Name | Arthur L. 2nd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Draftsman |
| Industry | Safeway Stores |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 840 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Draftsman |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Patricia Thomas | Daughter | — | 11 | ~1929 |
| Anthony Thomas | Head | — | 62 | ~1878 |
| Arthur Thomas | Son | — | 26 | ~1914 |
| Robert Thomas | Son | — | 17 | ~1923 |
| Emma Thomas | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Salt Lake, …
Son, age 4
Salt Lake, Utah · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Arthur L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Son, age 15
Salt Lake, Utah · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Arthur L Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Son, age 26
Salt-Lake-County, Utah · implied b. ~1914 — 5 household members
| Surname | Thomas |
| Given Name | Arthur L. 2nd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Draftsman |
| Industry | Safeway Stores |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 840 |
| Highest Grade | H 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 Arthur Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Thomas (~0.92 confidence) and father Anthony Thomas (~0.92 confidence) and father Arthur Thomas (~0.92 confidence) and mother Victoria Thomas (~0.92 confidence) and mother Emma Thomas (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Thomas
b. ~1855
Source father
● Household
· direct · ~0.92
Father
Anthony Thomas
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Arthur Thomas
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Victoria Thomas
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Emma Thomas
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Thomas
Son · 1940 · age 26 · b. ~1914 · Utah
★ You are viewing this record
Sibling
Patricia Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thomas
Sibling · 1940 · age 17
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
40 people indexed on this census page (nara:1940:m-t0627-04226-00933)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | B. Claire Gunderson | 13 | Daughter | — | Utah |
| 42 | Robert D. Gunderson | 10 | Son | — | Utah |
| 43 | Elfriede Muller | 37 | Housekeeper | Housekeeper | Germany |
| 44 | Philip G. Perkins | 52 | Head | Gen'L Agent | New York |
| 45 | Bonnie B. Perkins | 46 | Wife | — | Ohio |
| 46 | Julia G. Roberts | 47 | Head | Ex. W. | Texas |
| 47 | Natalie E. Roberts | 40 | Wife | — | Penn. |
| 48 | Julia Dor. Roberts | 15 | Son | — | Texas |
| 49 | H. H. Snidgrove | 63 | Head | Treasurer | Utah |
| 50 | Anthony Thomas | 62 | Head | Professional Engineer | Utah |
| 51 | Emma B. Thomas | 47 | Wife | — | Utah |
| 52 | Arthur L. 2Nd Thomas THIS PERSON | 26 | Son | Draftsman | Utah |
| 53 | Robert E. Thomas | 17 | Son | — | Utah |
| 54 | Patricia E. Thomas | 11 | Daughter | — | Utah |
| 55 | Irving D. Lowe | 58 | Head | Broker | New York |
| 56 | Katherine G. Lowe | 51 | Wife | — | Utah |
| 57 | Figure 2 Note Extra | None | Block | — | — |
| 58 | Lawrence Fox | 51 | Head | Mining Engr. | Utah |
| 59 | Charlotte Fox | 59 | Wife | — | Miss. |
| 60 | Lawrence Jr. Fox | 23 | Son | — | Utah |
| 61 | Pauline Calman | 21 | Housekeeper | Housekeeper | Utah |
| 62 | W. Burt Robinson | 54 | Head | Treasurer | Utah |
| 63 | Ivy R. Robinson | 54 | Wife | — | Utah |
| 64 | W. R. Pollock | 57 | Head | Asst. Mgr. | Utah |
| 65 | Fortuna Pollock | 55 | Wife | — | Utah |
| 66 | Robert D. Pollock | 21 | Son | — | Utah |
| 67 | Phyllis Hughes | 24 | Housekeeper | Housekeeper | Idaho |
| 68 | Wm. H. Guild | 56 | Head | Exec. | Nebraska |
| 69 | Ethel Guild | 53 | Wife | — | Illinois |
| 70 | Wm. Jr. Guild | 22 | Son | Clerk | Nebraska |
| 71 | Kathryn Golla | 31 | Housekeeper | Housekeeper | Oklahoma |
| 72 | Wm. Golla | 42 | Husband | Waiter | Miss. |
| 73 | J. Harold Firmage | 30 | Head | Mgr. | Utah |
| 74 | Roberta Firmage | 27 | Wife | — | Utah |
| 75 | John Harold Firmage | 7 | Son | — | Utah |
| 76 | Dan Davis Firmage | 3 | Son | — | Utah |
| 77 | Ward R. Mcalister | 43 | Head | Mgr. Pw | Ohio |
| 78 | Mildred Mcalister | 30 | Wife | — | Utah |
| 79 | Betty Lou Mcalister | 21 | Daughter | — | Utah |
| 80 | Carolyn Mcalister | 9 | Daughter | — | Utah |
Pedigree Summary
Arthur + 2 siblings
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)