GT
Grace Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Utah-County, Utah
Our Model Tree links this Grace Thomas across the 1930 and 1940 US Censuses in Utah-County, Utah (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 12-person household.
Age 48
b. ~1892
Female
Spouse
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Utah-County, Utah |
| Surname | Thomas |
| Given Name | Grace |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Genola town |
| 1935 Residence (County) | Utah |
| Additional Details | |
| Highest Grade | C-1 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Genola Town |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Grace | Age | Birth yr |
|---|---|---|---|---|
| David Thomas | Head | — | 53 | ~1887 |
| Kenneth Thomas | Son | — | 13 | ~1927 |
| Marcia Thomas | Daughter | — | 16 | ~1924 |
| Phyllis Thomas | Daughter | — | 15 | ~1925 |
| Douglas Thomas | Son | — | 11 | ~1929 |
| Jeanette Thomas | Son | — | 3 | ~1937 |
| Byron Thomas | Son | — | 18 | ~1922 |
| Lowell Thomas | Son | — | 7 | ~1933 |
| Lynn Thomas | Son | — | 9 | ~1931 |
| Grace Thomas | Spouse | — | 48 | ~1892 |
| Darwin Thomas | Son | — | 6 | ~1934 |
| Bynon Thomas | Son | — | 18 | ~1922 |
Census Appearances
1930
Utah, Utah
Spouse, age 37
Utah, Utah · implied b. ~1893 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Grace E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 27 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Utah-County, Utah
Spouse, age 48
Utah-County, Utah · implied b. ~1892 — 12 household members
| Surname | Thomas |
| Given Name | Grace |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Genola town |
| 1935 Residence (County) | Utah |
| Highest Grade | C-1 |
| 1935 Residence | Same house |
| 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 Grace Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Grace Thomas
Spouse · 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 — Utah-County, Utah
Open full size
1940 US Federal Census — Utah-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04219-00194)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cecil S. Nelson | 39 | head | Farmer | Utah |
| 2 | Lou Louise Nelson | 35 | wife | — | Utah |
| 3 | Lorna Nelson | 11 | daughter | — | Utah |
| 4 | Deloy Nelson | 9 | son | — | Utah |
| 5 | Neils O. Nelson | 71 | head | Farmer | Utah |
| 6 | Annie Nelson | 66 | wife | — | Utah |
| 7 | Claude Nelson | 31 | son | Laborer | Utah |
| 8 | Nellie Nelson | 23 | daughter-in-law | — | Utah |
| 9 | Le Ron Nelson | 4 | grandson | — | Utah |
| 10 | Alden O. Nelson | 36 | head | Farmer | Utah |
| 11 | Roberta Nelson | 30 | wife | — | Utah |
| 12 | Eleanor M. Nelson | 10 | daughter | — | Utah |
| 13 | Loyd Nelson | 6 | son | — | Utah |
| 14 | Floyd Nelson | 6 | son | — | Utah |
| 15 | Harold Oberg | 42 | head | Farmer | Utah |
| 16 | Elsie Oberg | 32 | wife | — | Utah |
| 17 | Verna Oberg | 13 | daughter | — | Utah |
| 18 | Bernard Oberg | 10 | son | — | Utah |
| 19 | Marven Oberg | 8 | son | — | Utah |
| 20 | Dennis Oberg | 6 | son | — | Utah |
| 21 | Robert Oberg | 3 | son | — | Utah |
| 22 | Max Oberg | 1 | son | — | Utah |
| 23 | David O. Thomas | 53 | head | Farmer | Utah |
| 24 | Grace Thomas THIS PERSON | 48 | wife | — | Utah |
| 25 | Bynon Thomas | 18 | son | Farmer | Utah |
| 26 | Byron Thomas | 18 | son | Farmer | Utah |
| 27 | Marcia Thomas | 16 | daughter | — | Utah |
| 28 | Phyllis Thomas | 15 | daughter | — | Utah |
| 29 | Kenneth Thomas | 13 | son | — | Utah |
| 30 | Douglas Thomas | 11 | son | — | Utah |
| 31 | Lynn Thomas | 9 | son | — | Utah |
| 32 | Lowell Thomas | 7 | son | — | Utah |
| 33 | Darwin Thomas | 6 | son | — | Utah |
| 34 | Jeanette Thomas | 3 | son | — | Utah |
| 35 | Milton Thomas | 48 | head | Rock Quarry | Utah |
| 36 | Dorthy Thomas | 43 | wife | — | Utah |
| 37 | Jackie Thomas | 9 | son | — | Utah |
| 38 | Lenard Isaacson | 32 | head | Farmer | Utah |
| 39 | Arthur Isaacson | 9 | son | — | Utah |
| 40 | Dellen Isaacson | 7 | daughter | — | Utah |
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)