DD
Donald Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Butte-County, South Dakota
Our Model Tree links this Donald Davis across the 1930 and 1940 US Censuses in Butte-County, South Dakota (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Male
Son
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Butte-County, South Dakota |
| Surname | Davis |
| Given Name | Donald J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Twp 14 Range 5 |
| 1935 Residence (County) | Butte |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Twp 14 Range 5 |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Shirley Davis | Daughter | — | 10 | ~1930 |
| Florence Davis | Daughter | — | 14 | ~1926 |
| Joan Davis | Daughter | — | 11 | ~1929 |
| Sandra Davis | Daughter | — | ~1940 | |
| Beverly Davis | Daughter | — | 5 | ~1935 |
| Joseph Davis | Head | — | 37 | ~1903 |
| Donald Davis | Son | — | 10 | ~1930 |
| Wesley Davis | Son | — | 6 | ~1934 |
| Albert Davis | Son | — | 12 | ~1928 |
| Lucile Davis | Spouse | — | 30 | ~1910 |
Census Appearances
1930
Butte, South …
Other, age
Butte, South Dakota · implied b. ~1930 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Donald A |
| Relationship to Head | Grand-son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Butte-County, South …
Son, age 10
Butte-County, South Dakota · implied b. ~1930 — 10 household members
| Surname | Davis |
| Given Name | Donald J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Twp 14 Range 5 |
| 1935 Residence (County) | Butte |
| Highest Grade | No 4 |
| 1935 Residence | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Donald Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Davis
Son · 1940 · age 10 · b. ~1930 · South Dakota
★ You are viewing this record
Sibling
Florence Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wesley Davis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Davis
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sandra Davis
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Davis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beverly Davis
Sibling · 1940 · age 5
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 — Butte-County, South Dakota
Open full size
1940 US Federal Census — Butte-County, South Dakota
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-03850-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph T. Davis | 37 | Head | Road Work | Iowa |
| 2 | Lucile M. Davis | 30 | Wife | — | South Dakota |
| 3 | Florence M. Davis | 14 | Daughter | — | South Dakota |
| 4 | Albert E. Davis | 12 | Son | — | South Dakota |
| 5 | Joan Y. Davis | 11 | Daughter | — | South Dakota |
| 6 | Donald J. Davis THIS PERSON | 10 | Son | — | South Dakota |
| 7 | Shirley J. Davis | 10 | Daughter | — | South Dakota |
| 8 | Wesley C. Davis | 6 | Son | — | South Dakota |
| 9 | Beverly A. Davis | 5 | Daughter | — | South Dakota |
| 10 | Sandra L. Davis | 0 | Daughter | — | South Dakota |
| 11 | Everett L. A. B. Davis | 75 | Head | Ranch | Illinois |
| 12 | Dwight E. Mildren | 23 | Head | Road Work | Kansas |
| 13 | Barbara L. D. Mildren | 21 | Wife | — | South Dakota |
| 14 | Joanne R. Mildren | 1 | Daughter | — | Kansas |
| 15 | Glenn Sr. D. Fink | 38 | Head | Operator Ranch | Iowa |
| 16 | Mildred Fink | 33 | Wife | — | South Dakota |
| 17 | Glenn Jr. Fink | 7 | Son | — | South Dakota |
| 18 | Mary L. Fink | 4 | Daughter | — | South Dakota |
| 19 | Gary G. Fink | 2 | Son | — | South Dakota |
| 20 | Fred Streeter | 46 | Hired hand | Ranch | South Dakota |
| 21 | George B. Joyce | 25 | Head | Operator Ranch | South Dakota |
| 22 | Josephine F. D. Joyce | 22 | Wife | — | Pennsylvania |
| 23 | Leona M. Joyce | 4 | Daughter | — | South Dakota |
| 24 | Sharon G. Joyce | 2 | Son | — | South Dakota |
| 25 | Henry B. Sr. Grinshach | 47 | Head | Operator Ranch | South Dakota |
| 26 | Elva A. Grinshach | 48 | Wife | — | Minnesota |
| 27 | Henry B. Jr. Grinshach | 21 | Son | Ranch | South Dakota |
| 28 | Thomas E. Grinshach | 18 | Son | Ranch | South Dakota |
| 29 | Albert M. Grinshach | 16 | Son | Ranch | South Dakota |
| 30 | Gerald P. Grinshach | 13 | Son | — | South Dakota |
| 31 | James L. Grinshach | 9 | Son | — | South Dakota |
| 32 | Alexander Carswell | 26 | Lodger | Teacher | England |
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)