JT
Jack Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Jack Thompson across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents Samuel & Truss — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Thompson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 47 |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | new worker |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | New Worker |
| Township / Ward | Precinct 47 |
| Est. Birth Year | ~1919 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Ola Thompson | Spouse | — | 44 | ~1896 |
| Truss Thompson | Son | — | 13 | ~1927 |
| Jack Thompson | Son | — | 21 | ~1919 |
| Catheryn Thompson | Daughter | — | 14 | ~1926 |
| Truss Thompson | Head | — | 52 | ~1888 |
Census Appearances
1920
Jefferson, Alabama
Son, age 2
Jefferson, Alabama · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Son, age 12
Jefferson, Alabama · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Son, age 21
Jefferson-County, Alabama · implied b. ~1919 — 5 household members
| Surname | Thompson |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 47 |
| 1935 Residence (County) | Jefferson |
| Occupation | new worker |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Samuel Thompson (~0.92 confidence) and father Truss Thompson (~0.92 confidence) and mother Ola Thompson (~0.92 confidence) and mother Ola Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Thompson
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Truss Thompson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Ola Thompson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Ola Thompson
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jack Thompson
Son · 1940 · age 21 · b. ~1919 · Alabama
★ You are viewing this record
Sibling
Truss Thompson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catheryn Thompson
Sibling · 1940 · age 14
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 — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00046-00639)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Bailey | 34 | Head | Coal Loader | Alabama |
| 2 | Virginia Bailey | 24 | Wife | — | Alabama |
| 3 | William Bailey | 9 | Son | — | Alabama |
| 4 | Ottis Bailey | 6 | Daughter | — | Alabama |
| 5 | Arnold Bailey | 4 | Son | — | Alabama |
| 6 | Franklin Bailey | 2 | Son | — | Alabama |
| 7 | Troy Wright | 34 | Head | Farmer | Alabama |
| 8 | Ida Wright | 31 | Wife | — | Alabama |
| 9 | Joyce Wright | 11 | Daughter | — | Alabama |
| 10 | Ralph Wright | 8 | Son | — | Alabama |
| 11 | Hazel Wright | 6 | Daughter | — | Alabama |
| 12 | Clifford Wright | 3 | Son | — | Alabama |
| 13 | George Fulton | 40 | Head | Labor | Alabama |
| 14 | Bessie Fulton | 37 | Wife | — | Alabama |
| 15 | Jane Fulton | 11 | Daughter | — | Alabama |
| 16 | Lillie Lee Fulton | 10 | Daughter | — | Alabama |
| 17 | Joe Fulton | 6 | Son | — | Alabama |
| 18 | Patrick Fulton | 1 | Son | — | Alabama |
| 19 | George Larkin | 56 | Head | Machinist | Alabama |
| 20 | Pearl Larkin | 39 | Wife | — | Alabama |
| 21 | Clarence Horsley | 27 | Head | Packer | Alabama |
| 22 | Williamine Horsley | 27 | Wife | — | Alabama |
| 23 | Martha Horsley | 1 | Daughter | — | Alabama |
| 24 | Lannie Hicks | 42 | Head | Guard | Alabama |
| 25 | Ola Hicks | 38 | Wife | — | Alabama |
| 26 | Geraldine Hicks | 16 | Daughter | — | Alabama |
| 27 | Gene Hicks | 11 | Son | — | Alabama |
| 28 | Garrett Woolery | 50 | Head | Contractor | Texas |
| 29 | Althea Woolery | 26 | Daughter | — | Alabama |
| 30 | Mason Harrison | 50 | Head | Contractor | Illinois |
| 31 | Della Harrison | 52 | Wife | — | Kansas |
| 32 | Donald Harrison | 21 | Son | Operator | Alabama |
| 33 | Wanda Harrison | 14 | Daughter | — | Alabama |
| 34 | Wilda Harrison | 13 | Daughter | — | Alabama |
| 35 | Truss Thompson | 52 | Head | Dairyman | Alabama |
| 36 | Ola Thompson | 44 | Wife | — | Alabama |
| 37 | Jack Thompson THIS PERSON | 21 | Son | New Worker | Alabama |
| 38 | Catheryn Thompson | 14 | Daughter | — | Alabama |
| 39 | Truss Jr Thompson | 13 | Son | — | Alabama |
| 40 | Will Haich | 53 | Head | Labor | Alabama |
Pedigree Summary
Jack + 2 siblings
Gen 1 · 4 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)