TT
Thomas Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Buffalo-County, Wisconsin
Our Model Tree links this Thomas Thompson across the 1920, 1930 and 1940 US Censuses in Buffalo-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Martin & Ragnild — first a son (b.~1910), then head of a 6-person household.
Age 30
b. ~1910
Male
Son
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Buffalo-County, Wisconsin |
| Surname | Thompson |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Buffalo |
| Additional Details | |
| Occupation | 60 |
| Industry | Farm Labor |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | 60 |
| Township / Ward | Modena Township |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Elsie Thompson | Daughter | — | 15 | ~1925 |
| Martin Thompson | Head | — | 69 | ~1871 |
| Gladys Thompson | Other | — | 22 | ~1918 |
| Leslie Thompson | Son | — | 23 | ~1917 |
| Thomas Thompson | Son | — | 30 | ~1910 |
| Ragnild Thompson | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Buffalo, Wisconsin
Son, age 10
Buffalo, Wisconsin · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Buffalo, Wisconsin
Son, age 20
Buffalo, Wisconsin · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| 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
Buffalo-County, Wisconsin
Son, age 30
Buffalo-County, Wisconsin · implied b. ~1910 — 6 household members
| Surname | Thompson |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Buffalo |
| Occupation | 60 |
| Industry | Farm Labor |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Thompson (~0.92 confidence) and mother Ragnild Thompson (~0.92 confidence) and mother Ragnhild Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Thompson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Ragnild Thompson
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Ragnhild Thompson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Thompson
Son · 1940 · age 30 · b. ~1910 · Wisconsin
★ You are viewing this record
Sibling
Elsie Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leslie Thompson
Sibling · 1940 · age 23
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 — Buffalo-County, Wisconsin
Open full size
1940 US Federal Census — Buffalo-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04462-00285)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ronald J. Johnson | 1 | Son | — | Wisconsin |
| 2 | Raymond J. Johnson | 1 | Son | — | Wisconsin |
| 3 | Willard J. Mathie | 5 | Step-son | — | Wisconsin |
| 4 | Ole Evans | 77 | Head | Farmer | Norway |
| 5 | Gertrude T. Evans | 69 | Wife | — | Norway |
| 6 | Theodore Evans | 23 | Son | 70 | Wisconsin |
| 7 | Norma H. Evans | 20 | Daughter | — | Wisconsin |
| 8 | Martin Thompson | 69 | Head | 0 | Wisconsin |
| 9 | Ragnild Thompson | 65 | Wife | — | Wisconsin |
| 10 | Leslie T. Thompson | 23 | Son | 60 | Wisconsin |
| 11 | Elsie C. Thompson | 15 | Daughter | — | Wisconsin |
| 12 | Thomas A. Thompson THIS PERSON | 30 | Son | 60 | Wisconsin |
| 13 | Gladys M. Thompson | 22 | Daughter-in-law | — | Wisconsin |
| 14 | Oscar H. Brommer | 42 | Head | 75 | Wisconsin |
| 15 | Sarah C. Brommer | 38 | Wife | — | Wisconsin |
| 16 | Ruth T. Brommer | 12 | Daughter | — | Wisconsin |
| 17 | Lucille C. Brommer | 9 | Daughter | — | Wisconsin |
| 18 | Duane T. Brommer | 5 | Son | — | Wisconsin |
| 19 | William J. Brommer | 73 | Head | Farmer | Norway |
| 20 | M. Maria Brommer | 69 | Wife | — | Wisconsin |
| 21 | Edwin L. Brommer | 35 | Son | 4 | Wisconsin |
| 22 | Earl E. Brommer | 21 | Son | 70 | Wisconsin |
| 23 | Martin Torgerson | 53 | Head | 70 | Wisconsin |
| 24 | Anna Torgerson | 52 | Wife | — | Wisconsin |
| 25 | Theodore O. Torgerson | 23 | Son | 70 | Wisconsin |
| 26 | Orville M. Torgerson | 21 | Son | 70 | Wisconsin |
| 27 | Martin F. Sandberg | 25 | Head | 60 | Wisconsin |
| 28 | Gertrude O. Sandberg | 24 | Wife | — | Wisconsin |
| 29 | Allen M. Sandberg | 2 | Son | — | Wisconsin |
| 30 | Mavis G. Sandberg | 0 | Daughter | — | Wisconsin |
| 31 | Arne M. Haugen | 15 | Lodger | 60 | Wisconsin |
| 32 | Erik Hellne | 65 | Head | Farmer | Norway |
| 33 | Louise Hellne | 38 | Wife | — | Norway |
| 34 | Leonard E. Hellne | 21 | Son | 70 | Wisconsin |
| 35 | Oscar I. Hellne | 13 | Son | — | Wisconsin |
| 36 | Ellen S. Hellne | 10 | Daughter | — | Wisconsin |
| 37 | Marvin T. Hellne | 7 | Son | — | Wisconsin |
| 38 | John C. Serum | 48 | Head | 72 | Wisconsin |
| 39 | Anna C. Serum | 45 | Wife | — | Wisconsin |
| 40 | Eldon M. Serum | 15 | Nephew | 72 | Wisconsin |
Related Census Records
Pedigree Summary
Thomas + 2 siblings
Gen 1 · 3 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)