KT
Kenneth Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marshall-County, Iowa
Our Model Tree links this Kenneth Thompson across the 1920, 1930 and 1940 US Censuses in Marshall-County, Iowa (XGBoost, ~Confirmed), with identified parents Mike & Victor — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Iowa |
| Surname | Thompson |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | Helper |
| Industry | Oil Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Helper |
| Township / Ward | Marshalltown |
| Est. Birth Year | ~1916 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Kenneth | Age | Birth yr |
|---|---|---|---|---|
| Kenneth Thompson | Son | — | 24 | ~1916 |
| Agnes Vaggt | Other | — | 23 | ~1917 |
| Mike Thompson | Head | — | 46 | ~1894 |
| Bernadine Thompson | Daughter | — | 18 | ~1922 |
| Minnie Thompson | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Marshall, Iowa
Son, age 3
Marshall, Iowa · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Kenneth M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Marshall, Iowa
Son, age 14
Marshall, Iowa · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marshall-County, Iowa
Son, age 24
Marshall-County, Iowa · implied b. ~1916 — 5 household members
| Surname | Thompson |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Marshalltown |
| 1935 Residence (County) | Marshall |
| Occupation | Helper |
| Industry | Oil Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | C 2 |
| 1935 Residence | Same Place |
| 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 Kenneth Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Mike Thompson (~0.92 confidence) and father Victor Thompson (~0.92 confidence) and mother Jennie Thompson (~0.92 confidence) and mother Minnie Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Mike Thompson
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Victor Thompson
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Jennie Thompson
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Minnie Thompson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Kenneth Thompson
Son · 1940 · age 24 · b. ~1916 · Iowa
★ You are viewing this record
Sibling
Bernadine Thompson
Sibling · 1940 · age 18
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 — Marshall-County, Iowa
Open full size
1940 US Federal Census — Marshall-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01182-00619)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | W. O. Forsythe | 36 | Head | Mgr. | Iowa |
| 2 | Mabel Forsythe | 32 | Wife | — | Iowa |
| 3 | Marlene Forsythe | 2 | Daughter | — | Iowa |
| 4 | Lloyd Anderson | 20 | Lodger | Machinist | Iowa |
| 5 | L. E. Batesole | 36 | Head | Owner | Iowa |
| 6 | Helen R. Batesole | 37 | Wife | — | Iowa |
| 7 | Jon Batesole | 0 | Son | — | Iowa |
| 8 | G. F. Klahn | 55 | Head | Telegraph Op. | Iowa |
| 9 | Harriet L. Klahn | 56 | Wife | — | Illinois |
| 10 | Mildred Grace Klahn | 18 | Daughter | — | Iowa |
| 11 | Helen Mae Klahn | 16 | Daughter | — | Iowa |
| 12 | A. W. Carlson | 56 | Head | Superintendent | Iowa |
| 13 | Wilhelmina Carlson | 54 | Wife | — | Iowa |
| 14 | Chas William Carlson | 17 | Son | — | Iowa |
| 15 | James Kenneth Carlson | 15 | Son | — | Iowa |
| 16 | Mike Thompson | 46 | Head | Salesman | Iowa |
| 17 | Minnie Thompson | 51 | Wife | — | Iowa |
| 18 | Kenneth Thompson THIS PERSON | 24 | Son | Helper | Iowa |
| 19 | Bernadine Thompson | 18 | Daughter | — | Iowa |
| 20 | Agnes Vaggt | 23 | Maid | Housekeeper | Iowa |
| 21 | W. H. Hicks | 43 | Head | Manager | Missouri |
| 22 | Jewell Hicks | 43 | Wife | — | Missouri |
| 23 | Jane Marie Hicks | 10 | Daughter | — | Nebraska |
| 24 | E. D. Hughes | 40 | Head | Superintend | Iowa |
| 25 | Irene Hughes | 38 | Wife | — | Iowa |
| 26 | James Hughes | 10 | Son | — | Iowa |
| 27 | Mary Lou Hughes | 5 | Daughter | — | Iowa |
| 28 | Mary Emily Wilcox | 68 | Head | — | Iowa |
| 29 | Chas P. Nachtemeier | 75 | Head | — | Wisconsin |
| 30 | Rebecca Nachtemeier | 66 | Wife | — | Illinois |
| 31 | Ruby Nachtemeier | 30 | Daughter | Saleslady | Iowa |
| 32 | Rachel Hoff | 54 | Head | Teacher | Iowa |
| 33 | Margaret Hoff | 19 | Daughter | Office Work | Iowa |
| 34 | Barbara Hoff | 12 | Daughter | — | Iowa |
| 35 | A. S. Randall | 71 | Head | — | Norway |
| 36 | Rena Randall | 65 | Wife | — | Iowa |
| 37 | Lilian Randall | 27 | Daughter | Art Dept | Iowa |
| 38 | James Randall | 22 | Daughter | — | Iowa |
| 39 | Etta Schmidt | 54 | Head | Manager | Iowa |
| 40 | John Lowry | 81 | Father | — | Iowa |
Pedigree Summary
Kenneth + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)