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Theodore Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Des-Moines-County, Iowa
Our Model Tree links this Theodore Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Des-Moines-County, Iowa (XGBoost, ~Confirmed), with identified parents Theodore & Frances — first a head (b.~1895), then head of a 5-person household.
Age 45
b. ~1895
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Des-Moines-County, Iowa |
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Burlington |
| 1935 Residence (County) | Des Moines |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Concordia Township |
| Est. Birth Year | ~1895 |
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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| John Williams | Other | — | 17 | ~1923 |
| Catherine Thompson | Spouse | — | 43 | ~1897 |
| Margaret Thompson | Daughter | — | 11 | ~1929 |
| Frances Thompson | Other | — | 71 | ~1869 |
| Theodore Thompson | Head | — | 45 | ~1895 |
Census Appearances
1910
Des Moines, …
Son, age 15
Des Moines, Iowa · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Iowa |
| Occupation | Farm Laborer |
| Industry | Home Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Des Moines, …
Head, age 24
Des Moines, Iowa · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Canada |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Des Moines, …
Head, age 35
Des Moines, Iowa · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Canada Eng |
| Mother's Birthplace | Canada |
| Occupation | Instructor |
| Industry | Flying Academy |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Des-Moines-County, Iowa
Head, age 45
Des-Moines-County, Iowa · implied b. ~1895 — 5 household members
| Surname | Thompson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Burlington |
| 1935 Residence (County) | Des Moines |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| 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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Theodore Thompson (~0.92 confidence) and mother Frances Thompson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Theodore Thompson
b. ~1843
Source father
● Household
· direct · ~0.92
Mother
Frances Thompson
b. ~1846
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Thompson
Head · 1940 · age 45 · b. ~1895 · 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 — Des-Moines-County, Iowa
Open full size
1940 US Federal Census — Des-Moines-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01156-00811)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jackie Savage | 3 | Son | — | Iowa |
| 42 | W. James | 74 | Grandfather | U | Iowa |
| 43 | Emma H. Ransom | 67 | Head | — | Indiana |
| 44 | Burton M. Walters | 70 | Head | Mail Clerk | Iowa |
| 45 | Eulalia M. Walters | 38 | Wife | H | Arkansas |
| 46 | Charles E. Walters | 18 | Son | Baker | Iowa |
| 47 | Barbara J. Walters | 12 | Daughter | — | Illinois |
| 48 | Donald M. Walters | 8 | Son | — | Missouri |
| 49 | Charles H. Schnecker | 38 | Head | Truck Driver | Iowa |
| 50 | Elsie C. Schnecker | 38 | Wife | H | Iowa |
| 51 | Leroy A. Schnecker | 14 | Son | — | Iowa |
| 52 | Betty J. Schnecker | 13 | Daughter | — | Iowa |
| 53 | Harold H. Schnecker | 10 | Son | — | Iowa |
| 54 | Theodore Thompson THIS PERSON | 45 | Head | Farmer | Iowa |
| 55 | Catherine Thompson | 43 | Wife | H | Iowa |
| 56 | Margaret E. Thompson | 11 | Daughter | — | Iowa |
| 57 | Frances E. Thompson | 71 | Mother | U | Iowa |
| 58 | John Williams | 17 | Hired hand | Labor | Iowa |
| 59 | James B. Smith | 38 | Head | Farmer | Iowa |
| 60 | Frances R. Smith | 29 | Wife | H | Iowa |
| 61 | Joan B. Smith | 1 | Daughter | — | Iowa |
| 62 | James E. Smith | 0 | Son | — | Iowa |
| 63 | Arthur Colman | 35 | Head | Farmer | Iowa |
| 64 | Ruth J. Colman | 33 | Wife | H | Iowa |
| 65 | Hanna J. Colman | 8 | Daughter | — | Iowa |
| 66 | Jeanne Colman | 6 | Daughter | — | Iowa |
| 67 | Warren E. Colman | 4 | Son | — | Iowa |
| 68 | Wayne A. Colman | 1 | Son | — | Iowa |
| 69 | Henry Rossum | 81 | Father | U | Iowa |
| 70 | Martin Murry | 67 | Hired hand | Farm Worker | Missouri |
| 71 | Peter A. Smith | 75 | Head | Retired Farmer | Denmark |
| 72 | Mary E. Smith | 73 | Wife | H | Illinois |
| 73 | Rollin D. Couch | 44 | Head | Millwork Etc. | Iowa |
| 74 | Ruth Couch | 43 | Wife | H | Iowa |
| 75 | Robert Couch | 19 | Son | S | Iowa |
| 76 | David B. Couch | 15 | Son | S | Iowa |
| 77 | Albert H. Vaughan | 37 | Head | Farm | Iowa |
| 78 | Ruth Vaughan | 28 | Wife | H | Iowa |
| 79 | James H. Vaughan | 4 | Son | — | Iowa |
| 80 | Virginia Vaughan | 42 | Sister | Np | Iowa |
Pedigree Summary
Theodore
Gen 1 · 2 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)