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Alma Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charles-Mix-County, South Dakota
Our Model Tree links this Alma Davis across the 1930 and 1940 US Censuses in Charles-Mix-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 11-person household.
Age 42
b. ~1898
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-Mix-County, South Dakota |
| Surname | Davis |
| Given Name | Alma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Kennedy Township |
| 1935 Residence (County) | Charles Mix |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Kennedy Township |
| Est. Birth Year | ~1898 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alma | Age | Birth yr |
|---|---|---|---|---|
| June Davis | Daughter | — | 5 | ~1935 |
| Frances Davis | Daughter | — | 15 | ~1925 |
| Wayne Davis | Son | — | 13 | ~1927 |
| Earl Davis | Son | — | 10 | ~1930 |
| Arbutus Davis | Son | — | 8 | ~1932 |
| Arthur Floyd | Other | — | 57 | ~1883 |
| Scott Davis | Head | — | 58 | ~1882 |
| Lyle Davis | Son | — | 4 | ~1936 |
| Alma Davis | Spouse | — | 42 | ~1898 |
| Fern Davis | Daughter | — | 12 | ~1928 |
| Loren Davis | Son | — | 2 | ~1938 |
Census Appearances
1930
Charles Mix, …
Spouse, age 31
Charles Mix, South Dakota · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Alma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Charles-Mix-County, South …
Spouse, age 42
Charles-Mix-County, South Dakota · implied b. ~1898 — 11 household members
| Surname | Davis |
| Given Name | Alma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Kennedy Township |
| 1935 Residence (County) | Charles Mix |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Alma Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Alma Davis
Spouse · 1940 · age 42 · b. ~1898 · South Dakota
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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 — Charles-Mix-County, South Dakota
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1940 US Federal Census — Charles-Mix-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03851-00151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leroy B. Barkley | 77 | Head | — | Canada |
| 42 | Jane Barkley | 77 | Wife | — | Canada |
| 43 | Mae L. Alvin | 54 | Head | — | Michigan |
| 44 | Edward Kindt | 39 | Head | Operator | South Dakota |
| 45 | Grace Kindt | 27 | Wife | — | South Dakota |
| 46 | Allen Kindt | 2 | Son | — | South Dakota |
| 47 | Fred Verzani | 36 | Head | Operator | South Dakota |
| 48 | Alice Verzani | 21 | Wife | — | South Dakota |
| 49 | Ole P. Strom | 31 | Head | Operator | South Dakota |
| 50 | William Brog | 39 | Head | Operator | Iowa |
| 51 | Lillian Brog | 30 | Wife | — | South Dakota |
| 52 | Robert Brog | 10 | Son | — | South Dakota |
| 53 | Donald Brog | 9 | Son | — | South Dakota |
| 54 | Norma Brog | 7 | Daughter | — | South Dakota |
| 55 | Milo Brog | 4 | Son | — | South Dakota |
| 56 | Cleo Brog | 1 | Son | — | South Dakota |
| 57 | Joseph Byer | 19 | Hired man | Laborer | Minnesota |
| 58 | Theodore Lokken | 38 | Head | Operator | South Dakota |
| 59 | Calvin Berry | 35 | Head | Operator | South Dakota |
| 60 | Florence Berry | 28 | Wife | — | South Dakota |
| 61 | Laddie Berry | 3 | Son | — | South Dakota |
| 62 | Oscar Moe | 54 | Head | Operator | Iowa |
| 63 | Lavelle Englebrecht | 41 | Head | Operator | Missouri |
| 64 | Fannie Englebrecht | 37 | Wife | — | South Dakota |
| 65 | Lucile Englebrecht | 16 | Daughter | — | South Dakota |
| 66 | Louis Jr. Englebrecht | 14 | Son | — | South Dakota |
| 67 | Douglas Englebrecht | 12 | Son | — | South Dakota |
| 68 | Janelle Englebrecht | 10 | Daughter | — | South Dakota |
| 69 | Delores Englebrecht | 7 | Daughter | — | South Dakota |
| 70 | Scott Davis | 58 | Head | Operator | South Dakota |
| 71 | Alma Davis THIS PERSON | 42 | Wife | — | Iowa |
| 72 | Frances Davis | 15 | Daughter | — | South Dakota |
| 73 | Wayne Davis | 13 | Son | — | South Dakota |
| 74 | Fern Davis | 12 | Daughter | — | South Dakota |
| 75 | Earl Davis | 10 | Son | — | South Dakota |
| 76 | Arbutus Davis | 8 | Son | — | South Dakota |
| 77 | June Davis | 5 | Daughter | — | South Dakota |
| 78 | Lyle Davis | 4 | Son | — | South Dakota |
| 79 | Loren Davis | 2 | Son | — | South Dakota |
| 80 | Arthur Floyd | 57 | Brother | Laborer | Wisconsin |
Related Census Records
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)