MA
Mary Adkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, South Dakota
Our Model Tree links this Mary Adkins across the 1920, 1930 and 1940 US Censuses in Lake-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 3-person household.
Age 61
b. ~1879
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, South Dakota |
| Surname | Adkins |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Madison |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Industry | No |
| Highest Grade | H 1 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Madison |
| Est. Birth Year | ~1879 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Milton Adkins | Head | — | 61 | ~1879 |
| Mary Adkins | Spouse | — | 61 | ~1879 |
| Delta Adkins | Daughter | — | 36 | ~1904 |
Census Appearances
1920
Lake, South …
Spouse, age 41
Lake, South Dakota · implied b. ~1879 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adkins |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Lake, South …
Spouse, age 51
Lake, South Dakota · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adkins |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Canada English |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Lake-County, South …
Spouse, age 61
Lake-County, South Dakota · implied b. ~1879 — 3 household members
| Surname | Adkins |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Madison |
| 1935 Residence (County) | Lake |
| Industry | No |
| Highest Grade | H 1 |
| 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 Mary Adkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Adkins
Spouse · 1940 · age 61 · b. ~1879 · South Dakota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lake-County, South Dakota
Open full size
1940 US Federal Census — Lake-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03859-00667)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ada Nughbert | 40 | Head | Teacher | South Dakota |
| 42 | Keith Nughbert | 17 | Son | — | South Dakota |
| 43 | Betty Lou Nughbert | 15 | Daughter | — | South Dakota |
| 44 | Wayne Nughbert | 14 | Son | — | South Dakota |
| 45 | Elkine Nughbert | 14 | Daughter | — | South Dakota |
| 46 | Clarence E. Bartlett | 59 | Head | Salesman | Wisconsin |
| 47 | Etzel M. Bartlett | 54 | Wife | — | South Dakota |
| 48 | Clayton Powers | 42 | Head | Lineman | South Dakota |
| 49 | Irene Powers | 36 | Wife | — | South Dakota |
| 50 | Bette Powers | 17 | Daughter | — | South Dakota |
| 51 | Robert Powers | 16 | Son | — | South Dakota |
| 52 | Jack Powers | 14 | Son | — | South Dakota |
| 53 | Gloria Powers | 10 | Daughter | — | South Dakota |
| 54 | Irene Wiberg | 23 | Head | Operator | South Dakota |
| 55 | Henry Lowsma | 41 | Head | Teacher | Michigan |
| 56 | Mabel Lowsma | 37 | Wife | — | Nebraska |
| 57 | Henry Jr Lowsma | 6 | Son | — | South Dakota |
| 58 | Caroline Lowsma | 4 | Daughter | — | South Dakota |
| 59 | Winifred Lowsma | 2 | Daughter | — | South Dakota |
| 60 | Karl Mundt | 39 | Head | Congressman | South Dakota |
| 61 | Mary Mundt | 39 | Wife | — | Minnesota |
| 62 | Milton L. Adkins | 61 | Head | Conductor | Wisconsin |
| 63 | Mary J. Adkins THIS PERSON | 61 | Wife | — | Iowa |
| 64 | Delta Adkins | 36 | Daughter | Stenographer | Minnesota |
| 65 | Otto Hanson | 35 | Head | Truck Driver | South Dakota |
| 66 | Oline Hanson | 35 | Wife | — | Norway |
| 67 | Mary Lou Hanson | 12 | Daughter | — | South Dakota |
| 68 | Roy C. Hanson | 11 | Son | — | South Dakota |
| 69 | Carol J. Hanson | 7 | Daughter | — | South Dakota |
| 70 | Johanna Scanlan | 74 | Head | — | Minnesota |
| 71 | Monica Scanlan | 46 | Daughter | Teacher | South Dakota |
| 72 | Walter O'Connell | 42 | Son-in-law | Salesman | South Dakota |
| 73 | Grace O'Connell | 44 | Daughter | — | South Dakota |
| 74 | George G. Porter | 63 | Head | Farm Supervisor | Iowa |
| 75 | Ruby Porter | 33 | Daughter | Teacher | Nebraska |
| 76 | Doris Porter | 22 | Daughter | Secretary | South Dakota |
| 77 | Leora Larson | 22 | Head | Teacher | South Dakota |
| 78 | John Schultz | 58 | Head | Carpenter | Iowa |
| 79 | Dorette Orton | 73 | Mother-in-law | — | New York |
| 80 | Walter Furmer | 50 | Head | Lawyer | South Dakota |
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)