MG
Mary Grace — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Utah-County, Utah
Our Model Tree links this Mary Grace across the 1930 and 1940 US Censuses in Utah-County, Utah (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Spouse
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Utah-County, Utah |
| Surname | Grace |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Lehi City |
| 1935 Residence (County) | Utah |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Lehi City |
| Est. Birth Year | ~1905 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edna Grace | Daughter | — | 4 | ~1936 |
| Eugene Grace | Son | — | 11 | ~1929 |
| James Grace | Son | — | 15 | ~1925 |
| James Grace | Head | — | 36 | ~1904 |
| Elaine Grace | Daughter | — | 13 | ~1927 |
| Mary Grace | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Utah, Utah
Other, age 23
Utah, Utah · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grace |
| Given Name | Mary |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 19 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Utah-County, Utah
Spouse, age 35
Utah-County, Utah · implied b. ~1905 — 6 household members
| Surname | Grace |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Lehi City |
| 1935 Residence (County) | Utah |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 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 Mary Grace across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Grace
Spouse · 1940 · age 35 · b. ~1905 · Utah
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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-t0627-04219-00335)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Faye Dickerson | 15 | daughter | Waitress | Utah |
| 42 | Olin Dickerson | 13 | daughter | — | Utah |
| 43 | Luther Coates | 71 | Head | — | North Carolina |
| 44 | Emma C. Coates | 62 | wife | — | Utah |
| 45 | Delbert R. Coates | 25 | Son | — | Utah |
| 46 | Ralph L. Wyman | 33 | Head | Carpenter Helper | Illinois |
| 47 | Richard A. Bone | 29 | Head | Laborer | Utah |
| 48 | Selma Bone | 29 | wife | — | Utah |
| 49 | Myrna Lee Bone | 8 | daughter | — | Utah |
| 50 | Roberta Bone | 7 | daughter | — | Utah |
| 51 | John M. Beveridge | 45 | Head | Farmer | Utah |
| 52 | Pearl V. Beveridge | 30 | wife | — | Utah |
| 53 | Ray Beveridge | 13 | son | — | Utah |
| 54 | Verona Beveridge | 11 | daughter | — | Utah |
| 55 | John Beveridge | 9 | son | — | Utah |
| 56 | Louise Beveridge | 7 | daughter | — | Utah |
| 57 | Lenora G. Beveridge | 1 | daughter | — | Utah |
| 58 | Joy Barnhart | 50 | Head | Truck Driver | Colorado |
| 59 | Vernice E. Barnhart | 41 | Wife | — | Utah |
| 60 | Joy D. Barnhart | 14 | son | New Worker | Utah |
| 61 | Roland Barnhart | 14 | son | — | Utah |
| 62 | Shirley L. Barnhart | 11 | daughter | — | Utah |
| 63 | Jacqueline Barnhart | 8 | daughter | — | Utah |
| 64 | Dewey S. Barnhart | 5 | son | — | Utah |
| 65 | James W. Grace | 36 | Head | Truck Driver | Utah |
| 66 | Mary L. Grace THIS PERSON | 35 | Wife | — | Utah |
| 67 | James C. Grace | 15 | son | — | Utah |
| 68 | Elaine M. Grace | 13 | daughter | — | Utah |
| 69 | Eugene Grace | 11 | son | — | Utah |
| 70 | Edna Grace | 4 | daughter | — | Utah |
| 71 | Fon H. Warburton | 28 | Head | Miner | Utah |
| 72 | Laura Warburton | 26 | Wife | — | Utah |
| 73 | Junior Warburton | 8 | son | — | Utah |
| 74 | Barbara Warburton | 6 | daughter | — | Utah |
| 75 | Sarah H. Kinder | 65 | Head | — | Utah |
| 76 | James P. Kinder | 25 | Head | W.P.A. | Utah |
| 77 | Florence L. Kinder | 25 | Wife | — | Utah |
| 78 | Bertha M. Kinder | 8 | daughter | — | Utah |
| 79 | Gene Ray Kinder | 5 | son | — | Utah |
| 80 | Zoe B. Kinder | 1 | 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)