TP
Thomas Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Deuel-County, South Dakota
Our Model Tree links this Thomas Peterson across the 1930 and 1940 US Censuses in Deuel-County, South Dakota (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Male
Son
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Deuel-County, South Dakota |
| Surname | Peterson |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Antelope Valley Township |
| 1935 Residence (County) | Deuel |
| Additional Details | |
| Occupation | Farming |
| Industry | On Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Farming |
| Township / Ward | Antelope Valley Township |
| Est. Birth Year | ~1917 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Ingeborg Peterson | Daughter | — | 27 | ~1913 |
| James Peterson | Son | — | 13 | ~1927 |
| Victor Peterson | Son | — | 21 | ~1919 |
| Howard Peterson | Son | — | 15 | ~1925 |
| Emma Peterson | Spouse | — | 55 | ~1885 |
| Ole Peterson | Head | — | 64 | ~1876 |
| Thomas Peterson | Son | — | 23 | ~1917 |
Census Appearances
1930
Deuel, South …
Son, age 13
Deuel, South Dakota · implied b. ~1917 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | South Dakota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Deuel-County, South …
Son, age 23
Deuel-County, South Dakota · implied b. ~1917 — 7 household members
| Surname | Peterson |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Antelope Valley Township |
| 1935 Residence (County) | Deuel |
| Occupation | Farming |
| Industry | On Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| 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 Thomas Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Peterson
Son · 1940 · age 23 · b. ~1917 · South Dakota
★ You are viewing this record
Sibling
Victor Peterson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Peterson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Peterson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ingeborg Peterson
Sibling · 1940 · age 27
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 — Deuel-County, South Dakota
Open full size
1940 US Federal Census — Deuel-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03854-00469)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herman H. Schmahl | 42 | Head | Farming | Germany |
| 2 | Caroline Schmahl | 43 | Wife | — | Iowa |
| 3 | Elnore Schmahl | 15 | Daughter | — | Minnesota |
| 4 | Joyce Schmahl | 14 | Daughter | — | South Dakota |
| 5 | Forrest Schmahl | 10 | Son | — | South Dakota |
| 6 | Herman Jr. Schmahl | 7 | Son | — | South Dakota |
| 7 | Henry Jonnes | 44 | Head | Farming | Illinois |
| 8 | C. Alma Jonnes | 43 | Wife | — | Minnesota |
| 9 | Betty A. Jonnes | 14 | Daughter | — | South Dakota |
| 10 | Mervyn J. Jonnes | 12 | Son | — | South Dakota |
| 11 | Virgil R. Jonnes | 9 | Son | — | South Dakota |
| 12 | Howard A. Jonnes | 7 | Son | — | South Dakota |
| 13 | Roger Jonnes | 2 | Son | — | South Dakota |
| 14 | Arthur C. Sherburne | 47 | Head | Farming | South Dakota |
| 15 | Lillian Sherburne | 40 | Wife | — | South Dakota |
| 16 | Virginia Sherburne | 13 | Daughter | — | South Dakota |
| 17 | Shirley Ann Sherburne | 9 | Daughter | — | South Dakota |
| 18 | Lyle Strain | 29 | Head | Farming | South Dakota |
| 19 | Zoe Strain | 28 | Wife | — | South Dakota |
| 20 | Lyle Junior Strain | 11 | Son | — | South Dakota |
| 21 | Wallace Strain | 8 | Son | — | South Dakota |
| 22 | Georgia Strain | 5 | Daughter | — | — |
| 23 | Darris Strain | 2 | Daughter | — | South Dakota |
| 24 | Gordon Strain | 0 | Son | — | South Dakota |
| 25 | Christ Mebust | 27 | Head | Farming | South Dakota |
| 26 | Evelyn Mebust | 24 | Wife | — | Minnesota |
| 27 | Roger D. Mebust | 4 | Son | — | South Dakota |
| 28 | Charlotte J. Mebust | 1 | Daughter | — | South Dakota |
| 29 | Ole Peterson | 64 | Head | Farming | Minnesota |
| 30 | Emma Peterson | 55 | Wife | — | South Dakota |
| 31 | Ingeborg Peterson | 27 | Daughter | — | South Dakota |
| 32 | Thomas Peterson THIS PERSON | 23 | Son | Farming | South Dakota |
| 33 | Victor Peterson | 21 | Son | Farming | South Dakota |
| 34 | Howard Peterson | 15 | Son | — | South Dakota |
| 35 | James Peterson | 13 | Son | — | South Dakota |
| 36 | Henry Henning | 67 | Head | Farming | Germany |
| 37 | Idell Henning | 61 | Wife | — | Iowa |
| 38 | Herman Henning | 32 | Son | Farming | South Dakota |
| 39 | Martha Henning | 30 | Daughter | — | South Dakota |
| 40 | Otto Henning | 28 | Son | Farming | 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)