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Theodore Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Otter-Tail-County, Minnesota
Our Model Tree links this Theodore Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Otter-Tail-County, Minnesota (XGBoost, ~Confirmed), with identified parents Charles & John — first a head (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Otter-Tail-County, Minnesota |
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Dane Prairie Township |
| 1935 Residence (County) | Otter Tail |
| Additional Details | |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farming |
| Township / Ward | Dane Prairie Township |
| Est. Birth Year | ~1905 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Theodore Thompson | Head | — | 35 | ~1905 |
| Lois Thompson | Daughter | — | 6 | ~1934 |
| Agnes Thompson | Spouse | — | 36 | ~1904 |
| David Thompson | Son | — | 8 | ~1932 |
| Gerald Thompson | Son | — | 1 | ~1939 |
| Delores Thompson | Daughter | — | 9 | ~1931 |
Census Appearances
1910
Otter Tail, …
Son, age 6
Otter Tail, Minnesota · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Nor. Norwegian |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Otter Tail, …
Son, age 15
Otter Tail, Minnesota · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Otter Tail, …
Son, age 25
Otter Tail, Minnesota · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Minnesota |
| Occupation | Laborer Farm |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Otter-Tail-County, Minnesota
Head, age 35
Otter-Tail-County, Minnesota · implied b. ~1905 — 6 household members
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Dane Prairie Township |
| 1935 Residence (County) | Otter Tail |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Theodore Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Roberts (~0.92 confidence) and father John Thompson (~0.92 confidence) and father Nels Thompson (~0.92 confidence) and mother Angeline Roberts (~0.92 confidence) and mother Dora Thompson (~0.92 confidence) and mother Wilhelmina Thompson (~0.92 confidence) and mother Wilhelmina Thompson (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Roberts
b. ~1869
Source father
● Household
· direct · ~0.92
Father
John Thompson
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Nels Thompson
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Angeline Roberts
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Dora Thompson
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Wilhelmina Thompson
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Wilhelmina Thompson
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Thompson
Head · 1940 · age 35 · b. ~1905 · Minnesota
★ 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 — Otter-Tail-County, Minnesota
Open full size
1940 US Federal Census — Otter-Tail-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01945-00242)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Delores O. Harthun | 12 | Daughter | — | Minnesota |
| 2 | George Harthun | 32 | Brother | Laborer | Minnesota |
| 3 | Oscar H. Varnes | 51 | Head | Farming | Minnesota |
| 4 | Emma C. Varnes | 46 | Wife | — | Minnesota |
| 5 | Orville H. Varnes | 15 | Son | Laborer | Minnesota |
| 6 | Edna Mae Varnes | 12 | Daughter | — | Minnesota |
| 7 | Harvey W. Varnes | 9 | Son | — | Minnesota |
| 8 | Hasten Jacobson | 66 | Head | Farming | Minnesota |
| 9 | Jacob Jacobson | 64 | Brother | Farming | Minnesota |
| 10 | Hannah L. Jacobson | 62 | Sister | — | Minnesota |
| 11 | Mabel O. Eggen | 34 | Servant | Housework | Minnesota |
| 12 | Theodore Thompson THIS PERSON | 35 | Head | Farming | Minnesota |
| 13 | Agnes Thompson | 36 | Wife | — | Minnesota |
| 14 | Delores M. Thompson | 9 | Daughter | — | Minnesota |
| 15 | David T. Thompson | 8 | Son | — | Minnesota |
| 16 | Lois M. Thompson | 6 | Daughter | — | Minnesota |
| 17 | Gerald D. Thompson | 1 | Son | — | Minnesota |
| 18 | Marten Rosvold | 52 | Head | Farming | Norway |
| 19 | Clara O. Rosvold | 51 | Wife | — | Minnesota |
| 20 | Henry A. Klimp | 22 | Hired boy | Laborer | North Dakota |
| 21 | Erick O. John | 65 | Head | Laborer | Sweden |
| 22 | Albin Tollefson | 50 | Head | Farming | Minnesota |
| 23 | Tilla Tollefson | 49 | Wife | — | Minnesota |
| 24 | Chester N. Tollefson | 19 | Son | Farming | Minnesota |
| 25 | Mildred B. Tollefson | 15 | Daughter | — | Minnesota |
| 26 | Carl G. Tollefson | 29 | Head | Farming | Sweden |
| 27 | Brita C. Tollefson | 75 | Wife | — | Sweden |
| 28 | Gilbert Cullen | 70 | Head | Beekeeping | Minnesota |
| 29 | Henry Skinnland | 46 | Head | Farming | Minnesota |
| 30 | Amelia J. Skinnland | 50 | Sister | — | Minnesota |
| 31 | Leonard P. Olsen | 26 | Laborer | Laborer | Minnesota |
| 32 | Peter M. Svendsen | 52 | Head | Farming | Minnesota |
| 33 | Melvin G. Hovland | 44 | Head | Farming | Minnesota |
| 34 | Olga N. Hovland | 44 | Wife | — | Minnesota |
| 35 | Clarice B. Hovland | 16 | Daughter | — | Minnesota |
| 36 | Verna G. Hovland | 15 | Daughter | — | Minnesota |
| 37 | Ruth L. Hovland | 13 | Daughter | — | Minnesota |
| 38 | Dorothy A. Hovland | 11 | Daughter | — | Minnesota |
| 39 | Daniel A. Hovland | 11 | Son | — | Minnesota |
| 40 | Howard O. M. Hovland | 10 | Son | — | Minnesota |
Related Census Records
Pedigree Summary
Theodore
Gen 1 · 7 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)