ET
Ethel Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Decatur-County, Iowa
Our Model Tree links this Ethel Thompson across the 1930 and 1940 US Censuses in Decatur-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 9-person household.
Age 23
b. ~1917
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Decatur-County, Iowa |
| Surname | Thompson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Lamoni city |
| 1935 Residence (County) | Decatur |
| Additional Details | |
| Occupation | Teaching |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Teaching |
| Township / Ward | Lamoni City |
| Est. Birth Year | ~1917 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ethel | Age | Birth yr |
|---|---|---|---|---|
| Ethel Thompson | Daughter | — | 23 | ~1917 |
| Alice Thompson | Daughter | — | 15 | ~1925 |
| Margaret Thompson | Daughter | — | 10 | ~1930 |
| John Thompson | Head | — | 46 | ~1894 |
| Paul Thompson | Son | — | 13 | ~1927 |
| Richard Thompson | Son | — | 5 | ~1935 |
| John Thompson | Son | — | 17 | ~1923 |
| Lynden Thompson | Son | — | 7 | ~1933 |
| Alma Thompson | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Decatur, Iowa
Daughter, age 13
Decatur, Iowa · implied b. ~1917 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ethel |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Decatur-County, Iowa
Daughter, age 23
Decatur-County, Iowa · implied b. ~1917 — 9 household members
| Surname | Thompson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Lamoni city |
| 1935 Residence (County) | Decatur |
| Occupation | Teaching |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 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 Ethel Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ethel Thompson
Daughter · 1940 · age 23 · b. ~1917 · Iowa
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Sibling
John Thompson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Thompson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lynden Thompson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Thompson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Thompson
Sibling · 1940 · age 5
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 — Decatur-County, Iowa
Open full size
1940 US Federal Census — Decatur-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01154-00590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nellie P Turpin | 48 | Head | Wpa | Iowa |
| 2 | Harold Turpin | 24 | Son | Wpa | Iowa |
| 3 | Francis Turpin | 25 | Son | Common | Iowa |
| 4 | Fred Turpin | 20 | Son | Laborer | Missouri |
| 5 | Gladys Turpin | 15 | Daughter-in-law | — | Iowa |
| 6 | Joseph France | 48 | Head | Salesman | Missouri |
| 7 | Harriet O France | 48 | Wife | — | Ohio |
| 8 | Russell Waller | 37 | Head | Truck Driver | Iowa |
| 9 | Muriel Waller | 34 | Wife | — | Iowa |
| 10 | Eugene Waller | 15 | Son | — | Iowa |
| 11 | Lyndon Waller | 10 | Son | — | Iowa |
| 12 | Thomas Waller | 6 | Son | — | Iowa |
| 13 | Rex Waller | 1 | Son | — | Iowa |
| 14 | John Thompson | 46 | Head | Trucker | Iowa |
| 15 | Alma P Thompson | 44 | Wife | — | Missouri |
| 16 | Ethel Thompson THIS PERSON | 23 | Daughter | Teaching | Minnesota |
| 17 | John D Thompson | 17 | Son | — | Iowa |
| 18 | Alice Thompson | 15 | Daughter | — | Iowa |
| 19 | Paul Thompson | 13 | Son | — | Iowa |
| 20 | Margaret Thompson | 10 | Daughter | — | Iowa |
| 21 | Lynden Thompson | 7 | Son | — | Iowa |
| 22 | Richard Thompson | 5 | Son | — | Iowa |
| 23 | Stewart Wight | 24 | Head | Clerk | Iowa |
| 24 | Madine Wight | 23 | Wife | — | Idaho |
| 25 | Rena Ann Wight | 0 | Daughter | — | Iowa |
| 26 | Virginia Haas | 14 | Sister-in-law | — | Idaho |
| 27 | Carrie Weld | 78 | Head | — | Illinois |
| 28 | Iola Kaestner | 37 | Head | Teacher | Missouri |
| 29 | Joyce Kaestner | 13 | Daughter | — | Iowa |
| 30 | Ward Kaestner | 9 | Son | — | Iowa |
| 31 | Cora Alice Hicks | 58 | Mother | — | Iowa |
| 32 | Rosabelle Hicks | 15 | Sister | — | Missouri |
| 33 | John Reynard | 41 | Head | Clothier | Iowa |
| 34 | Rita Q Reynard | 36 | Wife | — | Iowa |
| 35 | Betty Ann Reynard | 10 | Daughter | — | Missouri |
| 36 | Marilyn Kay Reynard | 6 | Daughter | — | Iowa |
| 37 | Flora Scott | 84 | Head | — | Michigan |
| 38 | Forrest White | 35 | Head | City Carrier | Iowa |
| 39 | Pauline O White | 33 | Wife | — | Missouri |
Related Census Records
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)