TM
Thomas Mason — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vernon-County, Wisconsin
Our Model Tree links this Thomas Mason across the 1910, 1920, 1930 and 1940 US Censuses in Vernon-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Arlo & Arlo — first a head (b.~1909), then head of a 6-person household.
Age 31
b. ~1909
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Vernon-County, Wisconsin |
| Surname | Mason |
| Given Name | Thomas A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Vernon |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farmer |
| Class of Worker | OA |
| Income (1939) | 250 |
| Highest Grade | H 3 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Farmer |
| Township / Ward | Viroqua City |
| Est. Birth Year | ~1909 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mildred Mason | Spouse | — | 28 | ~1912 |
| Barbara Mason | Daughter | — | 4 | ~1936 |
| Gloria Mason | Daughter | — | 8 | ~1932 |
| Mary Brott | Other | — | 84 | ~1856 |
| Thomas Mason | Head | — | 31 | ~1909 |
| Mary Mason | Daughter | — | 5 | ~1935 |
Census Appearances
1910
Vernon, Wisconsin
Son, age 2
Vernon, Wisconsin · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Vernon, Wisconsin
Son, age 12
Vernon, Wisconsin · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Vernon, Wisconsin
Son, age 22
Vernon, Wisconsin · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Vernon-County, Wisconsin
Head, age 31
Vernon-County, Wisconsin · implied b. ~1909 — 6 household members
| Surname | Mason |
| Given Name | Thomas A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Vernon |
| Occupation | Farmer |
| Industry | Farmer |
| Class of Worker | OA |
| Income (1939) | 250 |
| Highest Grade | H 3 |
| 1935 Residence | Wisconsin |
| 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 Thomas Mason across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arlo Mason (~0.92 confidence) and father Arlo Mason (~0.92 confidence) and father Nels Mason (~0.92 confidence) and mother Jessie Mason (~0.92 confidence) and mother Jessie Mason (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arlo Mason
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Arlo Mason
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Nels Mason
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Jessie Mason
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Jessie Mason
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mason
Head · 1940 · age 31 · b. ~1909 · Wisconsin
★ 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 — Vernon-County, Wisconsin
Open full size
1940 US Federal Census — Vernon-County, Wisconsin
Page Contents
13 people indexed on this census page (nara:1940:m-t0627-04530-00676)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert B Kitzman | 25 | Son in law | Pin Setter | Wisconsin |
| 2 | Elsie May Kitzman | 23 | daughter | — | Wisconsin |
| 3 | Robert Jr Kitzman | 1 | Grand-son | — | Wisconsin |
| 4 | Thomas A Mason THIS PERSON | 31 | Head | Farmer | Wisconsin |
| 5 | Mildred Mason | 28 | Wife | — | Wisconsin |
| 6 | Gloria May Mason | 8 | daughter | — | Wisconsin |
| 7 | Mary Ellen Mason | 5 | daughter | — | Wisconsin |
| 8 | Barbara Ann Mason | 4 | daughter | — | Wisconsin |
| 9 | Mary Brott | 84 | Grandmother | — | Illinois |
| 10 | Marie Solberg | 45 | Head | Bookkeeper | Wisconsin |
| 11 | Ernest Henry | 49 | Head | Janitor | Wisconsin |
| 12 | Katherine Henry | 13 | daughter | — | Wisconsin |
| 13 | Frank Chase | 73 | lodger | — | Wisconsin |
Pedigree Summary
Thomas
Gen 1 · 5 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)