JT
James Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this James Thompson across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Hazel & Rosa — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Thompson |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Helper |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Helper |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Lucille Thompson | Daughter | — | 13 | ~1927 |
| Rosa Thompson | Head | — | 45 | ~1895 |
| Helen Couch | Other | — | 32 | ~1908 |
| Walter Thompson | Son | — | 23 | ~1917 |
| James Thompson | Son | — | 22 | ~1918 |
| Billie Thompson | Son | — | 8 | ~1932 |
| Mary Thompson | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 1
Jefferson, Kentucky · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Son, age 11
Jefferson, Kentucky · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Son, age 22
Jefferson-County, Kentucky · implied b. ~1918 — 7 household members
| Surname | Thompson |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Helper |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 James Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Hazel Thompson (~0.92 confidence) and father Rosa Thompson (~0.92 confidence) and father Rosal Thompson (~0.92 confidence) and mother Mary Thompson (~0.92 confidence) and mother Mamie Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Hazel Thompson
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Rosa Thompson
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Rosal Thompson
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Mary Thompson
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Mamie Thompson
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Thompson
Son · 1940 · age 22 · b. ~1918 · Kentucky
★ You are viewing this record
Sibling
Walter Thompson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billie Thompson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Thompson
Sibling · 1940 · age 13
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, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01365-00405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Schramm | 44 | Head | — | Kentucky |
| 2 | Charles Schramm | 11 | Son | — | Kentucky |
| 3 | Earl Jones | 39 | Head | Service Sta Imp | Kentucky |
| 4 | Leona Jones | 41 | Wife | — | Kentucky |
| 5 | Margaret Jones | 20 | Daughter | — | Kentucky |
| 6 | Doris F Jones | 12 | Daughter | — | Kentucky |
| 7 | Earline C Jones | 3 | Daughter | — | Kentucky |
| 8 | Carrie O'Beare | 71 | Head | — | Kentucky |
| 9 | Marlin Naughn | 24 | Head | Phone Operator | Kentucky |
| 10 | Louise Naughn | 21 | Wife | — | Kentucky |
| 11 | Joseph M Naughn | 2 | Daughter | — | Kentucky |
| 12 | Martha J Naughn | 0 | Daughter | — | Kentucky |
| 13 | Rosa Thompson | 45 | Head | Salesman | Kentucky |
| 14 | Mary J Thompson | 43 | Wife | — | Kentucky |
| 15 | Walter J Thompson | 23 | Son | Concrete Truck Driver | Kentucky |
| 16 | James E Thompson THIS PERSON | 22 | Son | Helper | Kentucky |
| 17 | Lucille L Thompson | 13 | Daughter | — | Kentucky |
| 18 | Billie S Thompson | 8 | Son | — | Kentucky |
| 19 | Helen Couch | 32 | Niece | — | Kentucky |
| 20 | Joseph Thass | 47 | Head | Street Cleaner | Kentucky |
| 21 | Vira Thass | 37 | Wife | — | Kentucky |
| 22 | Alex Thass | 75 | Father | — | Kentucky |
| 23 | John Thass | 42 | Brother | Laborer | Kentucky |
| 24 | George Schupp | 58 | Head | Shoe Buyer | Kentucky |
| 25 | Virginia Schupp | 25 | Wife | — | Kentucky |
| 26 | Margaret Clark | 35 | Head | Food Handler | Kentucky |
| 27 | Doris Clark | 13 | Daughter | — | Kentucky |
| 28 | Hugo J Eblain | 27 | Head | Photographer | Illinois |
| 29 | Loraine Eblain | 25 | Wife | — | Indiana |
| 30 | Adelaide Schaffer | 30 | Head | Stenographer | Kentucky |
| 31 | Florence Schaffer | 32 | Sister | Clerk | Kentucky |
| 32 | Albert E Morris | 36 | Head | Foreman | Kentucky |
| 33 | Catherine Morris | 32 | Wife | — | Kentucky |
| 34 | Jane A Morris | 11 | Daughter | — | Kentucky |
| 35 | Albert E Morris | 5 | Daughter | — | Kentucky |
| 36 | Oscar C Hall | 67 | Father | Carpenter | Kentucky |
| 37 | Leroy C Thurman | 30 | Head | Asst Auditor | Kentucky |
| 38 | Virginia Thurman | 32 | Wife | Clerk | Kentucky |
| 39 | Edward Sacrey | 34 | Head | Commercial Cook | Kentucky |
| 40 | Elsie Sacrey | 33 | Wife | — | Kentucky |
Pedigree Summary
James + 3 siblings
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)