YourRoots by Genomelink
Sign up free
KT

Kenneth Thompson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Lincoln-County, South Dakota

Our Model Tree links this Kenneth Thompson across the 1930 and 1940 US Censuses in Lincoln-County, South Dakota (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 11-person household.

Age 14 b. ~1926 Male Son Born: South Dakota Single

1940 Census Record Details

Census Year1940
LocationLincoln-County, South Dakota
SurnameThompson
Given NameKenneth
Relationship to HeadSon
SexM
Color / RaceWhite
Age14
Marital StatusSingle
BirthplaceSouth Dakota
1935 Residence (City)Pleasant Twp.
1935 Residence (County)Lincoln
Additional Details
Income (1939)0
Highest GradeNo 8
1935 ResidenceSame House
Birth StateSouth Dakota
Birth CountryUnited States
Birthplace (normalized)south dakota
Township / WardPleasant Twp
Est. Birth Year~1926

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 Kenneth Age Birth yr
Wilmer Thompson Son — 10 ~1930
George Thompson Son — 12 ~1928
Hannah Thompson Spouse — 47 ~1893
Kenneth Thompson Son — 14 ~1926
Henry Thompson Son — 23 ~1917
Robert Thompson Son — 16 ~1924
Calmer Thompson Son — 21 ~1919
Robert Thompson Head — 55 ~1885
Victor Thompson Son — 19 ~1921
Lowell Thompson Son — 8 ~1932
Esther Thompson Daughter — 6 ~1934

Census Appearances

1930
Lincoln, South …
Son, age 4
Lincoln, South Dakota · implied b. ~1926 — 12 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Thompson
Given Name Kenneth
Relationship to Head Son
Sex M
Color / Race White
Age 4
Marital Status Single
Birthplace South Dakota
Father's Birthplace South Dakota
Mother's Birthplace Norway
Birth State South Dakota
Birth Country United States
Birthplace (normalized) south dakota
1940
Lincoln-County, South …
Son, age 14
Lincoln-County, South Dakota · implied b. ~1926 — 11 household members
Surname Thompson
Given Name Kenneth
Relationship to Head Son
Sex M
Color / Race White
Age 14
Marital Status Single
Birthplace South Dakota
1935 Residence (City) Pleasant Twp.
1935 Residence (County) Lincoln
Income (1939) 0
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.
Linked across censuses
Our Model Tree links Kenneth Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Kenneth Thompson
Son · 1940 · age 14 · b. ~1926 · South Dakota
★ You are viewing this record
Sibling
Calmer Thompson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Thompson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thompson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Thompson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilmer Thompson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victor Thompson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Thompson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lowell Thompson
Sibling · 1940 · age 8
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 — Lincoln-County, South Dakota Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03860-00972)

Line Name Age Relation Occupation Birthplace
1 Palmer Hansen 22 Head Laborer South Dakota
2 Robert Thompson 55 Head Farmer South Dakota
3 Hannah Thompson 47 Wife — Norway
4 Henry Thompson 23 Son Laborer South Dakota
5 Calmer Thompson 21 Son — South Dakota
6 Victor Thompson 19 Son Bookkeeper South Dakota
7 Robert Jr Thompson 16 Son — South Dakota
8 Kenneth Thompson THIS PERSON 14 Son — South Dakota
9 George Thompson 12 Son — South Dakota
10 Wilmer Thompson 10 Son — South Dakota
11 Lowell Thompson 8 Son — South Dakota
12 Esther Thompson 6 Daughter — South Dakota
13 Dorthea Johnson 82 Head — Norway
14 Josephine Moen 56 Daughter Laborer South Dakota
15 Iver Moen 22 Grandson Laborer South Dakota
16 Clarence Moen 15 Grandson — South Dakota
17 Merold Alson 25 Son-in-law Tractor Operator Minnesota
18 Jeanne Alson 24 Daughter — South Dakota
19 Elmer Albertson 35 Head Farmer South Dakota
20 Mildred Albertson 33 Wife — South Dakota
21 Janet Albertson 1 Daughter — South Dakota
22 Claus Hundevorde 52 Lodger Laborer Norway
23 John Yttreness 65 Head Farmer South Dakota
24 Mollie Yttreness 59 Wife — South Dakota
25 Harold Yttreness 34 Son Laborer South Dakota
26 John Yttreness 23 Son Laborer South Dakota
27 Helen Yttreness 20 Daughter — South Dakota
28 Justine Yttreness 32 Son Laborer South Dakota
29 John Thompson 63 Head Farmer South Dakota
30 Martha Thompson 52 Wife — Norway
31 John M Thompson 28 Son Laborer South Dakota
32 Arne Lloyd Thompson 24 Son Laborer South Dakota
33 Matt Schmid 44 Head Farmer South Dakota
34 Reuben Schmid 31 Brother Farmer South Dakota
35 Ingrid Theisvold 26 Keeper Housekeeping South Dakota
36 Donna Jean Theisvold 3 Daughter — South Dakota
37 Nels Nelsen 56 Head Carpenter Denmark
38 Elizabeth Bovill 45 Head — Ireland
39 Wendell Thompson 22 Son Farmer Iowa
40 Roy Bovill 16 Son — South Dakota

Search for Kenneth Thompson

All Kenneth Thompson Census Records Discover Thompson Family Tree

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)

Report inaccurate data
👤 View Profile 🌳 Ancestors 👥 Descendants