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Helen Mason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Box-Elder-County, Utah
Our Model Tree links this Helen Mason across the 1930 and 1940 US Censuses in Box-Elder-County, Utah (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Female
Daughter
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Box-Elder-County, Utah |
| Surname | Mason |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Fielding Town |
| 1935 Residence (County) | Box Elder |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Fielding Town |
| Est. Birth Year | ~1930 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| May Mason | Daughter | — | 2 | ~1938 |
| Helen Mason | Spouse | — | 33 | ~1907 |
| Dent Mason | Son | — | 1 | ~1939 |
| Ezra Mason | Head | — | 40 | ~1900 |
| Phyl Mason | Son | — | 11 | ~1929 |
| Rita Mason | Daughter | — | 7 | ~1933 |
| Jacqueline Mason | Daughter | — | 14 | ~1926 |
| Colden Mason | Daughter | — | 12 | ~1928 |
| Helen Mason | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Box Elder, …
Daughter, age
Box Elder, Utah · implied b. ~1930 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Helen Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Ohio |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Box-Elder-County, Utah
Daughter, age 10
Box-Elder-County, Utah · implied b. ~1930 — 9 household members
| Surname | Mason |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Fielding Town |
| 1935 Residence (County) | Box Elder |
| Highest Grade | No 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 Helen Mason across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mason
Daughter · 1940 · age 10 · b. ~1930 · Utah
★ You are viewing this record
Sibling
Colden Mason
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacqueline Mason
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Mason
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyl Mason
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dent Mason
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
May Mason
Sibling · 1940 · age 2
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 — Box-Elder-County, Utah
Open full size
1940 US Federal Census — Box-Elder-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04209-00456)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clyde M Holt | 45 | Head | Farmer | Utah |
| 2 | Annie Smith | 44 | Head | Farmer | Utah |
| 3 | Mildred Smith | 35 | Wife | Housewife | Idaho |
| 4 | Gordon Smith | 17 | Son | Farm Helper | Utah |
| 5 | Laquana Smith | 14 | Daughter | — | Utah |
| 6 | Lola Lou Smith | 12 | Daughter | — | Utah |
| 7 | Marva Smith | 7 | Daughter | — | Utah |
| 8 | Jerry L Smith | 5 | Son | — | Utah |
| 9 | Vernon L Hansen | 33 | Head | Teacher | Utah |
| 10 | Loretta J Hansen | 29 | Wife | Housewife | Utah |
| 11 | Ivy (Boulder) Brough | 23 | Boarder | School Teacher | Utah |
| 12 | Naomi (Bond) Nielsen | 23 | Boarder | School Teacher | Utah |
| 13 | Clifford L Welling | 45 | Head | Laborer | Utah |
| 14 | Millie Welling | 43 | Wife | Housewife | Utah |
| 15 | Adair Welling | 21 | Daughter | Housekeeper | Utah |
| 16 | Barbara Welling | 19 | Daughter | Library Ass'T | Utah |
| 17 | Lathere Welling | 14 | Son | — | Utah |
| 18 | Ronald Welling | 10 | Son | — | Utah |
| 19 | Ezra C Richard | 55 | Head | Farmer | Utah |
| 20 | Blanch Richard | 51 | Wife | Housewife | Utah |
| 21 | Steven Richard | 17 | Son | Laborer | Utah |
| 22 | Lot Welling | 66 | Father | Farmer | Utah |
| 23 | Selena Welling | 63 | Mother | Housewife | Utah |
| 24 | Phebe Welling | 38 | Daughter | Housekeeper | Utah |
| 25 | Glen Welling | 21 | Son | Common Day Laborer | Utah |
| 26 | Charlene Brough | 5 | Granddaughter | — | Utah |
| 27 | Eldon Welling | 14 | Grandson | — | Utah |
| 28 | J. Dewey Wood | 41 | Head | Farmer | Utah |
| 29 | Cora B Wood | 41 | Wife | Housewife | Virginia |
| 30 | Ezra C Mason | 40 | Head | Farmer | Utah |
| 31 | Helen E Mason | 33 | Wife | Housewife | Ohio |
| 32 | Jacqueline Mason | 14 | Daughter | — | Utah |
| 33 | Colden Mason | 12 | Daughter | — | Utah |
| 34 | Phyl Mason | 11 | Son | — | Utah |
| 35 | Helen Mason THIS PERSON | 10 | Daughter | — | Utah |
| 36 | Rita Mason | 7 | Daughter | — | Utah |
| 37 | May Mason | 2 | Daughter | — | Utah |
| 38 | Dent Mason | 1 | Son | — | Utah |
| 39 | C. J. Smith | 69 | Head | — | Utah |
| 40 | Annie H Smith | 70 | Wife | — | 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)