ET
Eva Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sauk-County, Wisconsin
Our Model Tree links this Eva Thomas across the 1930 and 1940 US Censuses in Sauk-County, Wisconsin (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 6-person household.
Age 44
b. ~1896
Female
Spouse
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sauk-County, Wisconsin |
| Surname | Thomas |
| Given Name | Eva |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fairfield Township |
| 1935 Residence (County) | Sauk |
| Additional Details | |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Fairfield Township |
| Est. Birth Year | ~1896 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eva | Age | Birth yr |
|---|---|---|---|---|
| Gordon Thomas | Son | — | 20 | ~1920 |
| Delbert Thomas | Son | — | 18 | ~1922 |
| Eva Thomas | Spouse | — | 44 | ~1896 |
| Frank Thomas | Head | — | 55 | ~1885 |
| Eloyce Thomas | Daughter | — | 22 | ~1918 |
| Harold Thomas | Son | — | 11 | ~1929 |
Census Appearances
1930
Sauk, Wisconsin
Other, age 34
Sauk, Wisconsin · implied b. ~1896 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Eva |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 18 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Sauk-County, Wisconsin
Spouse, age 44
Sauk-County, Wisconsin · implied b. ~1896 — 6 household members
| Surname | Thomas |
| Given Name | Eva |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fairfield Township |
| 1935 Residence (County) | Sauk |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Eva Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eva Thomas
Spouse · 1940 · age 44 · b. ~1896 · Wisconsin
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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 — Sauk-County, Wisconsin
Open full size
1940 US Federal Census — Sauk-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04523-00339)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Otto Seiler | 46 | Head | Farmer | Wisconsin |
| 2 | Louise Seiler | 41 | Wife | — | Wisconsin |
| 3 | Marjorie Seiler | 18 | Daughter | — | Wisconsin |
| 4 | William Seiler | 16 | Son | — | Wisconsin |
| 5 | Robert Seiler | 12 | Son | — | Wisconsin |
| 6 | June Seiler | 8 | Daughter | — | Wisconsin |
| 7 | Jesse Leatherberry | 32 | Head | Farmer | Wisconsin |
| 8 | Thelma Leatherberry | 25 | Wife | — | Wisconsin |
| 9 | Shirley Leatherberry | 2 | Daughter | — | Wisconsin |
| 10 | Wiley Mortensen | 62 | Head | Farmer | Denmark |
| 11 | Pearl Mortensen | 54 | Wife | — | Wisconsin |
| 12 | Charles Mortensen | 21 | Son | Logger | Wisconsin |
| 13 | Clara Mortensen | 12 | Daughter | — | Wisconsin |
| 14 | Clifton Higgins | 26 | Son-in-law | Logger | Wisconsin |
| 15 | Mable Higgins | 18 | Daughter | — | Wisconsin |
| 16 | Paula Higgins | 0 | Granddaughter | — | Wisconsin |
| 17 | John Holy | 46 | Head | Buyer | Wisconsin |
| 18 | Nellie Holy | 45 | Wife | — | Wisconsin |
| 19 | Roger Holy | 21 | Son | Cheese Maker | Wisconsin |
| 20 | Robert Holy | 16 | Son | — | Wisconsin |
| 21 | David John Holy | 5 | Grandson | — | Wisconsin |
| 22 | Ralph Plummer | 64 | Head | Farmer | Wisconsin |
| 23 | Rose Plummer | 52 | Wife | — | Wisconsin |
| 24 | Alvin Vernon Plummer | 21 | Son | — | Wisconsin |
| 25 | Steve Demer | 24 | Step-son | — | Wisconsin |
| 26 | Frank Demer | 13 | Step-son | — | Wisconsin |
| 27 | Arthur J. Tusby | 51 | Head | Farmer | Wisconsin |
| 28 | Frank A. Thomas | 55 | Head | Farmer | Wisconsin |
| 29 | Eva Thomas THIS PERSON | 44 | Wife | — | Wisconsin |
| 30 | Eloyce Thomas | 22 | Daughter | — | Wisconsin |
| 31 | Gordon Thomas | 20 | Son | — | Wisconsin |
| 32 | Delbert Thomas | 18 | Son | — | Wisconsin |
| 33 | Harold Thomas | 11 | Son | — | Wisconsin |
| 34 | Howard Davidson | 35 | Head | Metal Finish | Wisconsin |
| 35 | Ida Davidson | 31 | Wife | — | Illinois |
| 36 | John Davidson | 9 | Son | — | Wisconsin |
| 37 | Patricia Davidson | 8 | Daughter | — | Wisconsin |
| 38 | Joyce Davidson | 7 | Daughter | — | Wisconsin |
| 39 | Charles Higgins | 54 | Head | Farmer | Wisconsin |
| 40 | Edith Higgins | 53 | Wife | — | Wisconsin |
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)