BA
Betty Adams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tripp-County, South Dakota
Our Model Tree links this Betty Adams across the 1930 and 1940 US Censuses in Tripp-County, South Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 11-person household.
Age 16
b. ~1924
Female
Daughter
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tripp-County, South Dakota |
| Surname | Adams |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Tripp |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Weaver Twp |
| Est. Birth Year | ~1924 |
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 Betty | Age | Birth yr |
|---|---|---|---|---|
| Marlene Adams | Daughter | — | 4 | ~1936 |
| Iva Adams | Son | — | 14 | ~1926 |
| Betty Adams | Daughter | — | 16 | ~1924 |
| Robert Adams | Son | — | 17 | ~1923 |
| Julian Adams | Son | — | 10 | ~1930 |
| Donald Adams | Son | — | 7 | ~1933 |
| Mary Adams | Daughter | — | 2 | ~1938 |
| Mary Adams | Spouse | — | 36 | ~1904 |
| Julius Adams | Head | — | 47 | ~1893 |
| Lavern Adams | Son | — | 14 | ~1926 |
| Arnold Adams | Son | — | 12 | ~1928 |
Census Appearances
1930
Tripp, South …
Daughter, age 5
Tripp, South Dakota · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Betty Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Iowa |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Tripp-County, South …
Daughter, age 16
Tripp-County, South Dakota · implied b. ~1924 — 11 household members
| Surname | Adams |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Tripp |
| Highest Grade | 6 |
| 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 Betty Adams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Adams
Daughter · 1940 · age 16 · b. ~1924 · South Dakota
★ You are viewing this record
Sibling
Arnold Adams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lavern Adams
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marlene Adams
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Adams
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iva Adams
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Adams
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Adams
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julian Adams
Sibling · 1940 · age 10
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 — Tripp-County, South Dakota
Open full size
1940 US Federal Census — Tripp-County, South Dakota
Page Contents
29 people indexed on this census page (nara:1940:m-t0627-03868-00635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Tunnessen | 60 | Head | Farming | Germany |
| 2 | Robina Tunnessen | 47 | Wife | — | Nebraska |
| 3 | Donald J. Tunnessen | 11 | Son | — | Nebraska |
| 4 | L. L. Sharer | 58 | Head | Farming | Iowa |
| 5 | Ada M. Sharer | 55 | Wife | — | Iowa |
| 6 | Keith L. Sharer | 15 | Son | 44 | Oregon |
| 7 | George A. Humphrey | 61 | Brother-in-law | 70 | Iowa |
| 8 | Wesley J. Sterling | 22 | Hired hand | Laborer Farm | South Dakota |
| 9 | Lena Kuinster | 51 | Head | — | Nebraska |
| 10 | Harold C. Kuinster | 21 | Son | Farming | South Dakota |
| 11 | Melvin Kuinster | 16 | Son | — | South Dakota |
| 12 | James L. Hamlik | 45 | Head | Farming | Nebraska |
| 13 | Julius J. Adams | 47 | Head | Farming | Nebraska |
| 14 | Mary M. Adams | 36 | Wife | — | Iowa |
| 15 | Robert Adams | 17 | Son | Helper Farm | Nebraska |
| 16 | Betty Adams THIS PERSON | 16 | Daughter | — | South Dakota |
| 17 | Iva M. Adams | 14 | Son | — | South Dakota |
| 18 | Lavern A. Adams | 14 | Son | — | South Dakota |
| 19 | Arnold T. Adams | 12 | Son | — | South Dakota |
| 20 | Julian J. Adams | 10 | Son | — | South Dakota |
| 21 | Donald G. Adams | 7 | Son | — | South Dakota |
| 22 | Marlene Adams | 4 | Daughter | — | South Dakota |
| 23 | Mary Ann Adams | 2 | Daughter | — | South Dakota |
| 24 | John Sharer | 55 | Head | Farming | South Dakota |
| 25 | Nellie A. Sharer | 43 | Wife | — | Nebraska |
| 26 | Lois C. Sharer | 17 | Daughter | 32 | South Dakota |
| 27 | Ruth M. Sharer | 15 | Daughter | — | South Dakota |
| 28 | John W. Sharer | 13 | Son | — | South Dakota |
| 29 | Bernard G. Sharer | 10 | Son | — | 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)