AT
Ada Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Ada Thompson across the 1920, 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 4-person household.
Age 55
b. ~1885
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Thompson |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Blakesburg Town |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Blakesburg Town |
| Est. Birth Year | ~1885 |
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 Ada | Age | Birth yr |
|---|---|---|---|---|
| Burley Thompson | Head | — | 56 | ~1884 |
| Ada Thompson | Spouse | — | 55 | ~1885 |
| Bernard Rosman | Other | — | 46 | ~1894 |
| Alice Thompson | Daughter | — | 33 | ~1907 |
Census Appearances
1920
Wapello, Iowa
Spouse, age 34
Wapello, Iowa · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Wapello, Iowa
Spouse, age 45
Wapello, Iowa · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tompson |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 17 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Spouse, age 55
Wapello-County, Iowa · implied b. ~1885 — 4 household members
| Surname | Thompson |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Blakesburg Town |
| 1935 Residence (County) | Wapello County |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same house |
| 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 Ada Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ada Thompson
Spouse · 1940 · age 55 · b. ~1885 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Howard Abernathy | 26 | Head | Postmaster | Iowa |
| 2 | La Rue Abernathy | 26 | Wife | — | Iowa |
| 3 | Jeanne Abernathy | 7 | Daughter | — | Iowa |
| 4 | Joanne Abernathy | 3 | Daughter | — | Iowa |
| 5 | Nathan M. Widner | 66 | Head | — | Iowa |
| 6 | Edith Widner | 64 | Wife | — | Iowa |
| 7 | Elmer S. Wilson | 52 | Head | Painter | Iowa |
| 8 | Grace Wilson | 50 | Wife | — | Iowa |
| 9 | Ruth E. Wilson | 12 | Daughter | — | Iowa |
| 10 | Jackie Wayne Wilson | 10 | Son | — | Iowa |
| 11 | William C. Stevens | 48 | Head | Rail Road Mechanic | Iowa |
| 12 | Anna Stevens | 39 | Wife | — | Iowa |
| 13 | Donald D. Stevens | 10 | Son | — | Iowa |
| 14 | Burley Thompson | 56 | Head | Barber | Iowa |
| 15 | Ada Thompson THIS PERSON | 55 | Wife | — | Iowa |
| 16 | Alice Thompson | 33 | Daughter | — | Iowa |
| 17 | Bernard G. Rosman | 46 | Son-in-law | Truck Driver | Iowa |
| 18 | Leslie Carnahan | 26 | Head | Coal Miner | Iowa |
| 19 | Velma Carnahan | 23 | Wife | — | Iowa |
| 20 | John B. Olson | 61 | Head | Stationary Engineer | Sweden |
| 21 | Anna S. Olson | 64 | Wife | — | Sweden |
| 22 | John A. Olson | 35 | Son | — | Iowa |
| 23 | Angeline Perry | 50 | Head | School Teacher | Iowa |
| 24 | Adam Baird | 86 | Lodger | — | Virginia |
| 25 | Elmer Ellison | 42 | Head | Laborer | Iowa |
| 26 | Elsie Ellison | 39 | Wife | — | Iowa |
| 27 | Aaron Harlan | 81 | Head | — | Iowa |
| 28 | Ida Harlan | 80 | Wife | — | Iowa |
| 29 | Arlo Felix | 39 | Head | Section Laborer | Iowa |
| 30 | Mary Felix | 31 | Wife | — | Iowa |
| 31 | Albert Le Roy Felix | 12 | Son | — | Iowa |
| 32 | Arlo Ray Felix | 10 | Son | — | Iowa |
| 33 | Alice May Felix | 7 | Daughter | — | Iowa |
| 34 | James W. Felix | 80 | Father | — | Iowa |
| 35 | Abra Chadd | 58 | Head | — | Iowa |
| 36 | Millie Girty | 71 | Head | — | Iowa |
| 37 | Earl W. Girty | 36 | Son | Credit Manager | Iowa |
| 38 | Ellen Barnes | 89 | Mother | — | Iowa |
| 39 | Guy F. Hall | 67 | Head | Farmer | Iowa |
| 40 | Flora M. Hall | 64 | Wife | — | Iowa |
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)