SD
Shirley Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Millard-County, Utah
Our Model Tree links this Shirley Davis across the 1930 and 1940 US Censuses in Millard-County, Utah (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Female
Daughter
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Millard-County, Utah |
| Surname | Davis |
| Given Name | Shirley |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Delta |
| 1935 Residence (County) | Millard |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Delta |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Shirley | Age | Birth yr |
|---|---|---|---|---|
| Scott Davis | Son | — | 6 | ~1934 |
| Mona Davis | Daughter | — | 5 | ~1935 |
| Russell Davis | Son | — | 14 | ~1926 |
| Katherine Davis | Daughter | — | 16 | ~1924 |
| A Davis | Head | — | 56 | ~1884 |
| Mckay Davis | Son | — | 17 | ~1923 |
| Barbara Davis | Daughter | — | 7 | ~1933 |
| Shirley Davis | Daughter | — | 15 | ~1925 |
| Mabel Davis | Spouse | — | 39 | ~1901 |
| Reed Davis | Son | — | 9 | ~1931 |
Census Appearances
1930
Millard, Utah
Daughter, age 5
Millard, Utah · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Shirley |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Can Read/Write | No |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Millard-County, Utah
Daughter, age 15
Millard-County, Utah · implied b. ~1925 — 10 household members
| Surname | Davis |
| Given Name | Shirley |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Delta |
| 1935 Residence (County) | Millard |
| Hours Worked | 0 |
| Highest Grade | S 8 |
| 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 Shirley Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Shirley Davis
Daughter · 1940 · age 15 · b. ~1925 · Utah
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Sibling
Reed Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mckay Davis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mona Davis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Davis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Scott Davis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Davis
Sibling · 1940 · age 7
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 — Millard-County, Utah
Open full size
1940 US Federal Census — Millard-County, Utah
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04214-00401)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas L. Callister | 6 | Son | — | Utah |
| 42 | John Avery Bishop | 54 | Head | Manager | Utah |
| 43 | Semira Bishop | 54 | Wife | — | Nevada |
| 44 | Francis Bishop | 23 | Son | Common Labor | Utah |
| 45 | Mervin M. Bishop | 22 | Son | Common Labor | Utah |
| 46 | John A. Bishop | 21 | Son | Common Labor | Utah |
| 47 | Semira Bishop | 18 | Daughter | — | Utah |
| 48 | Ava Bishop | 15 | Daughter | — | Utah |
| 49 | Grace Bishop | 11 | Daughter | — | Utah |
| 50 | Frank A. Beckwith | 63 | Head | Editor | Wyoming |
| 51 | Mary B. Beckwith | 60 | Wife | — | Pennsylvania |
| 52 | Wilford E. Cook | 40 | Head | Mechanic | Iowa |
| 53 | Athena Cook | 38 | Wife | — | Utah |
| 54 | Jessie Cook | 6 | Daughter | — | Utah |
| 55 | Leigh Cordon | 34 | Head | Soil Technologist | Utah |
| 56 | Lucile Cordon | 33 | Wife | — | Utah |
| 58 | A. Lynn Davis | 56 | Head | Common Labor | Utah |
| 59 | Mabel Cany Davis | 39 | Wife | — | Utah |
| 60 | Mckay Davis | 17 | Son | Newspaper | Utah |
| 61 | Katherine Davis | 16 | Daughter | — | Utah |
| 62 | Shirley Davis THIS PERSON | 15 | Daughter | — | Utah |
| 63 | Russell Davis | 14 | Son | — | Utah |
| 64 | Reed Davis | 9 | Son | — | Utah |
| 65 | Barbara Davis | 7 | Daughter | — | Utah |
| 66 | Scott Davis | 6 | Son | — | Utah |
| 67 | Mona Davis | 5 | Daughter | — | Utah |
| 68 | Albert Wallace | 52 | Head | Salesman | Kentucky |
| 69 | Myra Wallace | 49 | Wife | — | Utah |
| 70 | Lillie Wallace | 22 | Daughter | Butter Wrapper | Utah |
| 71 | Robert Wallace | 20 | Son | Common Labor | Utah |
| 72 | Dora Wallace | 17 | Daughter | — | Utah |
| 73 | Nora Wallace | 17 | Daughter | — | Utah |
| 74 | Wallace Wallace | 8 | Son | — | Utah |
| 75 | Rana E. Bishop | 83 | Mother | — | Utah |
| 76 | Soren Black | 30 | Head | Common Labor | Utah |
| 77 | Deonma Black | 31 | Wife | — | Utah |
| 78 | Cheryl Black | 9 | Daughter | — | Utah |
| 79 | Stanley Black | 5 | Son | — | Utah |
| 80 | Dorothy Black | 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)