DT
Donald Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Brown-County, Wisconsin
Our Model Tree links this Donald Thomas across the 1920, 1930 and 1940 US Censuses in Brown-County, Wisconsin (XGBoost, ~Confirmed), with identified parents August & Catherine — first a son (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Wisconsin |
| Surname | Thomas |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Green Bay City |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Occupation | Road Worker |
| Industry | County Highway Dept |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1100 |
| Highest Grade | No H-4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Road Worker |
| Township / Ward | Green Bay City |
| Est. Birth Year | ~1911 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Catherine Thomas | Head | — | 61 | ~1879 |
| Kathleen Thomas | Daughter | — | 15 | ~1925 |
| Donald Thomas | Son | — | 29 | ~1911 |
Census Appearances
1920
Brown, Wisconsin
Son, age 9
Brown, Wisconsin · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Brown, Wisconsin
Son, age 19
Brown, Wisconsin · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Brown-County, Wisconsin
Son, age 29
Brown-County, Wisconsin · implied b. ~1911 — 3 household members
| Surname | Thomas |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Green Bay City |
| 1935 Residence (County) | Brown |
| Occupation | Road Worker |
| Industry | County Highway Dept |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1100 |
| Highest Grade | No H-4 |
| 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 Donald Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father August Thomas (~0.92 confidence) and mother Catherine Thomas (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Thomas
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Catherine Thomas
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Thomas
Son · 1940 · age 29 · b. ~1911 · Wisconsin
★ You are viewing this record
Sibling
Kathleen Thomas
Sibling · 1940 · age 15
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 — Brown-County, Wisconsin
Open full size
1940 US Federal Census — Brown-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04460-00066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ottilie Klaus | 62 | Head | — | Wisconsin |
| 2 | Theodore Scheriff | 33 | Lodger | Mechanic | Michigan |
| 3 | Edward J. Kaye | 67 | Head | Tailor | Wisconsin |
| 4 | Catherine Kaye | 67 | Wife | — | Wisconsin |
| 5 | George F. Senn | 64 | Head | Medical Doctor | Wisconsin |
| 6 | Gertrude B. Senn | 61 | Wife | — | Iowa |
| 7 | George N. Senn | 30 | Son | Traveling Salesman | Missouri |
| 8 | Joel D. Senn | 28 | Son | Salesman | Wisconsin |
| 9 | Gertrude P. Senn | 25 | Daughter | — | Wisconsin |
| 10 | Leonard B. Senn | 20 | Son | — | Wisconsin |
| 11 | Helen L. Walton | 27 | Daughter | — | Wisconsin |
| 12 | Robert Walton | 28 | Son-in-law | Traveling Salesman | Connecticut |
| 13 | William A. Walton | 5 | Grandson | — | Massachusetts |
| 14 | George S. Walton | 4 | Grandson | — | New Hampshire |
| 15 | Barbara H. Walton | 2 | Daughter | — | Massachusetts |
| 16 | Joseph W. Brunner | 72 | Head | — | Wisconsin |
| 17 | Laura A. Brunner | 68 | Wife | — | Wisconsin |
| 18 | Theresa Le Mere | 86 | Sister-in-law | — | Belgium |
| 19 | Mrs. Nellie Sutherland | 74 | Head | — | Wisconsin |
| 20 | John G. Pierner | 53 | Son-in-law | Bartender | Wisconsin |
| 21 | Lorraine Pierner | 21 | Granddaughter | — | Wisconsin |
| 22 | Warren Pierner | 19 | Grandson | — | Wisconsin |
| 23 | Ruth Pierner | 17 | Granddaughter | — | Wisconsin |
| 24 | Catherine Thomas | 61 | Head | — | Wisconsin |
| 25 | Donald Thomas THIS PERSON | 29 | Son | Road Worker | Wisconsin |
| 26 | Kathleen Thomas | 15 | Daughter | — | Wisconsin |
| 27 | Herman (X) Erby | 63 | Head | Traveling Salesman | Illinois |
| 28 | Charlotte Erby | 55 | Wife | — | Ohio |
| 29 | Valerian E. Schneider | 42 | Lodger | Commercial Manager | Minnesota |
| 30 | Alice Wall | 29 | Lodger | Instructor | Wisconsin |
| 31 | John F. Halley | 44 | Head | Janitor | Wisconsin |
| 32 | Edith Halley | 36 | Wife | Clerk | Pennsylvania |
| 33 | Joseph Delano | 56 | Head | Watchman | Wisconsin |
| 34 | Kathryn (X) Delano | 56 | Wife | — | Wisconsin |
| 35 | Marion Delano | 27 | Daughter | — | Wisconsin |
| 36 | John Delano | 25 | Son | Stock Room Clerk | Wisconsin |
| 37 | Margaret Delano | 23 | Daughter | — | Wisconsin |
| 38 | Mrs. Florence Reau | 49 | Head | — | Michigan |
| 39 | Howell E. Reau | 23 | Son | Machine Operator | Michigan |
| 40 | Elizabeth H. Reau | 18 | Daughter | — | Michigan |
Related Census Records
Pedigree Summary
Donald + 1 sibling
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)