DT
Dorothy Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Webster-County, Iowa
Our Model Tree links this Dorothy Thomas across the 1920, 1930 and 1940 US Censuses in Webster-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Female
Spouse
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Webster-County, Iowa |
| Surname | Thomas |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Dayton Township |
| 1935 Residence (County) | Webster |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Dayton Township |
| Est. Birth Year | ~1889 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Bert Thomas | Head | — | 56 | ~1884 |
| Jack Thomas | Son | — | 25 | ~1915 |
| Dorothy Thomas | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Webster, Iowa
Spouse, age 31
Webster, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Webster, Iowa
Spouse, age 41
Webster, Iowa · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 20 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Webster-County, Iowa
Spouse, age 51
Webster-County, Iowa · implied b. ~1889 — 3 household members
| Surname | Thomas |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Dayton Township |
| 1935 Residence (County) | Webster |
| Class of Worker | 0 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Dorothy Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Thomas
Spouse · 1940 · age 51 · b. ~1889 · 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 — Webster-County, Iowa
Open full size
1940 US Federal Census — Webster-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01212-00178)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bernie Plahn | 11 | Head | — | Iowa |
| 42 | Gilbert J. Hanson | 46 | Head | Farmer | Iowa |
| 43 | Florence Hanson | 42 | Wife | — | Iowa |
| 44 | Marianne Hanson | 19 | Daughter | — | Iowa |
| 45 | Delores Hanson | 14 | Daughter | — | Iowa |
| 46 | Charlie Hansen | 47 | Head | Farmer | Denmark |
| 47 | Esther C. Hansen | 45 | Wife | — | Iowa |
| 48 | Waldemar Hansen | 13 | Son | — | Iowa |
| 49 | Albert S. Hansen | 57 | Head | Farmer | Iowa |
| 50 | Margaret Hansen | 52 | Wife | — | Denmark |
| 51 | Howard Hansen | 22 | Son | Laborer | Iowa |
| 52 | Donald Hansen | 16 | Son | Laborer | Nebraska |
| 53 | A. Leffert Holmstrom | 49 | Head | Farmer | Iowa |
| 54 | Amy B. Holmstrom | 41 | Wife | — | Illinois |
| 55 | Virginia Holmstrom | 17 | Daughter | — | Iowa |
| 56 | William Holmstrom | 12 | Son | — | Iowa |
| 57 | William H. Thomas | 87 | Father-in-law | — | Illinois |
| 58 | Sven A. B. Lundberg | 54 | Head | Farmer | Sweden |
| 59 | Sigrid Lundberg | 54 | Wife | — | Sweden |
| 60 | Florence Lundberg | 31 | Daughter | — | Iowa |
| 61 | Oscar Hamberg | 45 | Hired Hand | Laborer | California |
| 62 | Carl A. Thorne | 63 | Head | Farmer | Iowa |
| 63 | Selma B. Thorne | 62 | Wife | — | Illinois |
| 64 | Carl S. Thorne | 26 | Son | Laborer | Iowa |
| 65 | Emil Bloomquist | 58 | Head | Farmer | Sweden |
| 66 | Esther Bloomquist | 55 | Wife | — | Iowa |
| 67 | Paul C. Bloomquist | 19 | Son | Laborer | Iowa |
| 68 | Bert M. Thomas | 56 | Head | Farmer | Illinois |
| 69 | Dorothy Thomas THIS PERSON | 51 | Wife | — | Ohio |
| 70 | Jack L. Thomas | 25 | Son | Laborer | Ohio |
| 71 | Lloyd E. Olson | 42 | Head | Farmer | Iowa |
| 72 | Martina Olson | 34 | Wife | — | Iowa |
| 73 | Lois Olson | 11 | Daughter | — | Iowa |
| 74 | Marilyn Olson | 7 | Daughter | — | Iowa |
| 75 | Marie Olson | 3 | Daughter | — | Iowa |
| 76 | Harold Plahn | 16 | Hired Hand | Laborer | Iowa |
| 77 | Oscar Swanson | 49 | Head | Farmer | Iowa |
| 78 | Mabel Swanson | 52 | Wife | Laborer | Iowa |
| 79 | June Swanson | 14 | Daughter | — | Iowa |
| 80 | Kathryn Swanson | 9 | Daughter | — | 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)