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James Davidson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dewey-County, South Dakota
Our Model Tree links this James Davidson across the 1930 and 1940 US Censuses in Dewey-County, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1904), then head of a 9-person household.
Age 36
b. ~1904
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dewey-County, South Dakota |
| Surname | Davidson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Eagle Butte |
| 1935 Residence (County) | Dewey |
| Additional Details | |
| Occupation | Laborer |
| Industry | Railroad Section |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Laborer |
| Township / Ward | Eagle Butte |
| Est. Birth Year | ~1904 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Phyllis Davidson | Daughter | — | 8 | ~1932 |
| Bernice Davidson | Daughter | — | 10 | ~1930 |
| Patricia Davidson | Daughter | — | 3 | ~1937 |
| Mary Davidson | Daughter | — | 6 | ~1934 |
| James Davidson | Head | — | 36 | ~1904 |
| William Davidson | Son | — | 5 | ~1935 |
| Donald Davidson | Son | — | — | |
| James Davidson | Son | — | 2 | ~1938 |
| Edith Davidson | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Dewey, South …
Other, age 26
Dewey, South Dakota · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | James L. |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 25 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | United States |
| Occupation | Laborer |
| Industry | Road Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Dewey-County, South …
Head, age 36
Dewey-County, South Dakota · implied b. ~1904 — 9 household members
| Surname | Davidson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Eagle Butte |
| 1935 Residence (County) | Dewey |
| Occupation | Laborer |
| Industry | Railroad Section |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 James Davidson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Davidson
Head · 1940 · age 36 · b. ~1904 · 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 — Dewey-County, South Dakota
Open full size
1940 US Federal Census — Dewey-County, South Dakota
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03854-00731)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Naren Dean | 14 | Son | — | South Dakota |
| 42 | Delores Dean | 11 | Daughter | — | South Dakota |
| 43 | George Harling | 52 | Head | Laborer | Minnesota |
| 44 | Nola Harling | 56 | Wife | — | Minnesota |
| 45 | Alvina Blattner | 18 | Maid | Maid | South Dakota |
| 46 | Boyd Blattner | 8 | Son | — | South Dakota |
| 47 | Mary Conklin | 74 | Head | — | Iowa |
| 48 | J. A. Hayes | 62 | Head | Operator | Missouri |
| 49 | Minnie Hayes | 60 | Wife | — | Iowa |
| 50 | Ralph Strong | 8 | Grandson | — | South Dakota |
| 51 | Margaret Marchant | 70 | Head | — | Iowa |
| 52 | Rosa Maupin | 61 | Head | — | Indiana |
| 53 | Howard Mcdaniel | 47 | Head | Rancher | Illinois |
| 54 | Nella Mcdaniel | 46 | Wife | Teacher | Illinois |
| 55 | Donald Mcdaniel | 22 | Son | — | South Dakota |
| 56 | Patricia Mcdaniel | 17 | Daughter | — | South Dakota |
| 58 | Harlan Meyers | 21 | Head | Laborer | South Dakota |
| 59 | Alita Meyers | 21 | Wife | — | South Dakota |
| 60 | Dolores Meyers | 2 | Daughter | — | South Dakota |
| 61 | Leslie Meyers | 1 | Son | — | South Dakota |
| 62 | James Davidson THIS PERSON | 36 | Head | Laborer | South Dakota |
| 63 | Edith Davidson | 35 | Wife | — | South Dakota |
| 64 | Bernice Davidson | 10 | Daughter | — | South Dakota |
| 65 | Phyllis Davidson | 8 | Daughter | — | South Dakota |
| 66 | Mary Ann Davidson | 6 | Daughter | — | South Dakota |
| 67 | William Davidson | 5 | Son | — | South Dakota |
| 68 | Patricia Davidson | 3 | Daughter | — | South Dakota |
| 69 | James Davidson | 2 | Son | — | South Dakota |
| 70 | Donald Davidson | None | Son | — | South Dakota |
| 71 | Will Weeks | 66 | Head | — | Minnesota |
| 72 | Craig Weeks | 34 | Son | Laborer | South Dakota |
| 73 | Casey Forgard | 52 | Roomer | Carpenter | Iowa |
| 75 | Burton O'Neil | 56 | Head | Stock Buyer | Oklahoma |
| 76 | Elaie O'Neil | 58 | Wife | — | Iowa |
| 77 | Shannon O'Neil | 23 | Son | Clerk | Iowa |
| 78 | Grace Blattner | 52 | Head | Maid | Iowa |
| 79 | Eleanor Blattner | 12 | Daughter | — | South Dakota |
| 80 | Scotty Gill | 68 | Roomer | — | Scotland |
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)