JT
Jack Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wood-County, Wisconsin
Our Model Tree links this Jack Thomas across the 1930 and 1940 US Censuses in Wood-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wood-County, Wisconsin |
| Surname | Thomas |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Sherry Twp. |
| 1935 Residence (County) | Wood |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Sherry Twp |
| Est. Birth Year | ~1923 |
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 Jack | Age | Birth yr |
|---|---|---|---|---|
| Grace Thomas | Spouse | — | 40 | ~1900 |
| William Thomas | Son | — | 12 | ~1928 |
| Jack Thomas | Son | — | 17 | ~1923 |
| Betty Thomas | Daughter | — | 15 | ~1925 |
| David Thomas | Son | — | 3 | ~1937 |
| John Thomas | Head | — | 46 | ~1894 |
Census Appearances
1930
Wood, Wisconsin
Son, age 8
Wood, Wisconsin · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| 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
Wood-County, Wisconsin
Son, age 17
Wood-County, Wisconsin · implied b. ~1923 — 6 household members
| Surname | Thomas |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Sherry Twp. |
| 1935 Residence (County) | Wood |
| Highest Grade | H 3 |
| 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 Jack Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Thomas
Son · 1940 · age 17 · b. ~1923 · Wisconsin
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Sibling
Betty Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Thomas
Sibling · 1940 · age 3
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 — Wood-County, Wisconsin
Open full size
1940 US Federal Census — Wood-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04541-00274)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Willard Lunt | 8 | Son | — | Wisconsin |
| 42 | Vera Craig | 24 | Lodger | Teacher | North Dakota |
| 43 | George Stelzerger | 45 | Head | Farmer | Wisconsin |
| 44 | Elizabeth Stelzerger | 40 | Wife | — | Wisconsin |
| 45 | John R. Thomas | 46 | Head | Farmer | Wisconsin |
| 46 | Grace A. Thomas | 40 | Wife | — | Wisconsin |
| 47 | Jack Thomas THIS PERSON | 17 | Son | — | Wisconsin |
| 48 | Betty Jane Thomas | 15 | Daughter | — | Wisconsin |
| 49 | William Thomas | 12 | Son | — | Wisconsin |
| 50 | David Thomas | 3 | Son | — | Wisconsin |
| 51 | Rudolph Gomoll | 59 | Head | Farmer | Wisconsin |
| 52 | Elizabeth Gomoll | 55 | Wife | — | Wisconsin |
| 53 | Ruby Gomoll | 25 | Son | Farmer | Wisconsin |
| 54 | Mike Porsch | 35 | Head | Farmer | Wisconsin |
| 55 | Rosey Porsch | 33 | Wife | — | Wisconsin |
| 56 | Anthony Porsch | 15 | Son | Farmer | Wisconsin |
| 57 | Lucile Porsch | 11 | Daughter | — | Wisconsin |
| 58 | Bernadine Porsch | 8 | Daughter | — | Wisconsin |
| 59 | Herbert Porsch | 2 | Son | — | Wisconsin |
| 60 | Frank G. Tadack | 48 | Head | Farmer | Wisconsin |
| 61 | Martha Tadack | 46 | Wife | — | Wisconsin |
| 62 | Charles F. Tuffield | 54 | Head | Mail Carrier | Wisconsin |
| 63 | Hattie Tuffield | 49 | Wife | — | Wisconsin |
| 64 | Charles D. Tuffield | 21 | Son | Farmer | Wisconsin |
| 65 | Edward Tuffield | 14 | Son | — | Wisconsin |
| 66 | Matt Thick | 55 | Head | Farmer | Austria |
| 67 | Annie Thick | 52 | Wife | — | Wisconsin |
| 68 | Leonard Thick | 22 | Son | Farm Laborer | Wisconsin |
| 69 | James Thick | 16 | Son | New Worker | Wisconsin |
| 70 | Carl Heit | 28 | Head | Farmer | Wisconsin |
| 71 | Jennie Heit | 26 | Wife | — | Wisconsin |
| 72 | Martin Reckle | 82 | Head | — | Austria |
| 73 | Thomas Reckle | 59 | Son | Farmer | Wisconsin |
| 74 | Alvin Reckle | 49 | Son | Farmer | Wisconsin |
| 75 | Joseph Palan | 75 | Head | — | Austria |
| 76 | Christina Palan | 69 | Wife | — | Wisconsin |
| 77 | Frank Palan | 49 | Son | Farmer | Wisconsin |
| 78 | Bruce O. Knopsack | 56 | Head | Farmer | Wisconsin |
| 79 | Fred Knopsack | 66 | Brother | Farmer | Wisconsin |
| 80 | Luina Knopsack | 63 | Sister | — | 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)