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Theodore Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mitchell-County, Iowa
Our Model Tree links this Theodore Thompson across the 1920, 1930 and 1940 US Censuses in Mitchell-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 4-person household.
Age 63
b. ~1877
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mitchell-County, Iowa |
| Surname | Thompson |
| Given Name | Theodore G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Otranto Twp. |
| 1935 Residence (County) | Mitchell |
| Additional Details | |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Otranto Twp |
| Est. Birth Year | ~1877 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Mildred Thompson | Daughter | — | 15 | ~1925 |
| Theodore Thompson | Head | — | 63 | ~1877 |
| Johnny Thompson | Son | — | 20 | ~1920 |
| Alma Thompson | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Mitchell, Iowa
Head, age 43
Mitchell, Iowa · implied b. ~1877 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodor A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Mitchell, Iowa
Head, age 53
Mitchell, Iowa · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 28 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Mitchell-County, Iowa
Head, age 63
Mitchell-County, Iowa · implied b. ~1877 — 4 household members
| Surname | Thompson |
| Given Name | Theodore G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Otranto Twp. |
| 1935 Residence (County) | Mitchell |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 7 |
| 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 Theodore Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Theodore Thompson
Head · 1940 · age 63 · b. ~1877 · Iowa
★ 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 — Mitchell-County, Iowa
Open full size
1940 US Federal Census — Mitchell-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01183-00736)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isabel Nelson | 70 | Mother-in-law | — | Iowa |
| 2 | Jane C Epple | 19 | Maid | Maid | Iowa |
| 3 | Chris Nelson | 58 | Head | Farmer | Iowa |
| 4 | Mary S Nelson | 59 | Wife | — | Norway |
| 5 | Conrad B Myhre | 40 | Head | Farmer | Iowa |
| 6 | L. Veta Myhre | 34 | Wife | — | Iowa |
| 7 | Alta J. Myhre | 12 | Daughter | — | Iowa |
| 8 | Loretta M. Myhre | 10 | Daughter | — | Minnesota |
| 9 | Eugene R. Myhre | 6 | Son | — | Iowa |
| 10 | Florence M. Myhre | 3 | Daughter | — | Iowa |
| 11 | Bert Stene | 52 | Head | Farmer | Norway |
| 12 | Gladys Stene | 44 | Sister | — | Iowa |
| 13 | John B Sandvig | 49 | Head | Farmer | Iowa |
| 14 | Emma Sandvig | 51 | Sister | — | Iowa |
| 15 | Anna Sandvig | 81 | Mother | — | Norway |
| 16 | Ibert C. Nofland | 43 | Head | Farmer | Iowa |
| 17 | Laura M. Nofland | 45 | Wife | — | Minnesota |
| 18 | Ira J. Nofland | 15 | Son | Laborer | Minnesota |
| 19 | Loretta J. Nofland | 14 | Daughter | — | Minnesota |
| 20 | Carroll M. Nofland | 10 | Son | — | Minnesota |
| 21 | Gilbto Tieman | 50 | Head | Farmer | Iowa |
| 22 | Alfred B Haugen | 47 | Head | Farmer | Minnesota |
| 23 | Clara H Haugen | 40 | Wife | — | Iowa |
| 24 | Mary E Haugen | 3 | Daughter | — | Minnesota |
| 25 | Ann N Haugen | 2 | Daughter | — | Minnesota |
| 26 | Wilder Helgeland | 20 | Hired man | Laborer | Minnesota |
| 27 | Ben Melius | 60 | Hired man | Laborer | Iowa |
| 28 | Theodore G. Thompson THIS PERSON | 63 | Head | Farmer | Iowa |
| 29 | Alma M. Thompson | 57 | Wife | — | Minnesota |
| 30 | Johnny D. Thompson | 20 | Son | Laborer | Iowa |
| 31 | Mildred S Thompson | 15 | Daughter | — | Iowa |
| 32 | Leland C. Nauger | 30 | Head | Farmer | Iowa |
| 33 | Hattie L. Nauger | 30 | Wife | — | Minnesota |
| 34 | Samuel Elatke | 62 | Head | Farmer | Wisconsin |
| 35 | Emma J Elatke | 52 | Wife | — | Iowa |
| 36 | August J Elatke | 22 | Son | Farmer | Iowa |
| 37 | Fred Tesch | 41 | Head | Farmer | Iowa |
| 38 | Malinda Tesch | 35 | Wife | — | Iowa |
| 39 | John Brandt | 63 | Head | Farmer | Jugoslavia |
| 40 | Elizabeth Brandt | 63 | Wife | — | Hungary |
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)