TC
Thomas Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Thomas Cooper across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Matilda & Harry — 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 | Cooper |
| Given Name | Thomas |
| 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 | Machinist |
| Industry | Private Garage |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 332 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Machinist |
| 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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Cooper | Son | — | 22 | ~1918 |
| Harry Cooper | Son | — | 18 | ~1922 |
| Matilda Cooper | Spouse | — | 54 | ~1886 |
| Melvina Cooper | Other | — | 21 | ~1919 |
| Ellen Cooper | Daughter | — | 24 | ~1916 |
| George Cooper | Son | — | 25 | ~1915 |
| Patrick Cooper | Other | — | ~1940 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 2
Jefferson, Kentucky · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Son, age 12
Jefferson, Kentucky · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Thomas R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 | Cooper |
| Given Name | Thomas |
| 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 | Machinist |
| Industry | Private Garage |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 332 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| 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 Thomas Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Matilda Cooper (~0.92 confidence) and father Harry Cooper (~0.92 confidence) and mother Matilda Cooper (~0.92 confidence) and mother Mabel Cooper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Matilda Cooper
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Harry Cooper
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Matilda Cooper
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mabel Cooper
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Cooper
Son · 1940 · age 22 · b. ~1918 · Kentucky
★ You are viewing this record
Sibling
George Cooper
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Cooper
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Cooper
Sibling · 1940 · age 18
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-t0627-01376-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Matilda Cooper | 54 | Wife | — | Kentucky |
| 42 | George Cooper | 25 | Son | Laborer | Kentucky |
| 43 | Ellen Cooper | 24 | Daughter | Saleslady | Kentucky |
| 44 | Harry J. Jr. Cooper | 18 | Son | Stockboy | Kentucky |
| 45 | Thomas Cooper THIS PERSON | 22 | Son | Machinist | Kentucky |
| 46 | Melvina Cooper | 21 | Daughter-in-law | — | Kentucky |
| 47 | Patrick Cooper | 0 | Grandson | — | Kentucky |
| 48 | Lawrence Ritter | 52 | Head | Laborer | Kentucky |
| 49 | Minnie Ritter | 50 | Wife | — | Kentucky |
| 50 | Mary E. Ritter | 13 | Daughter | — | Kentucky |
| 51 | Sherrill Ritter | 29 | Son | Salesman | Kentucky |
| 52 | Ruth Ritter | 27 | Daughter-in-law | — | Kentucky |
| 53 | Sherrill Jr. Ritter | 7 | Grandson | — | Kentucky |
| 54 | John L. Ritter | 5 | Grandson | — | Kentucky |
| 55 | William Vaught | 24 | Boarder | Salesman | Kentucky |
| 56 | William Hayes | 31 | Head | Salesman | Kentucky |
| 57 | Eula Hayes | 30 | Wife | — | Kentucky |
| 58 | Evelyn Hayes | 5 | Daughter | — | Kentucky |
| 59 | Edward L. Taylor | 37 | Head | Millwright | Kentucky |
| 60 | Elizabeth Taylor | 43 | Wife | — | Kentucky |
| 61 | Howard O. Tracy | 35 | Head | Fireman | Michigan |
| 62 | Violet Tracy | 33 | Wife | Operator | Kentucky |
| 63 | Howard Jr. Tracy | 11 | Son | — | Kentucky |
| 64 | Marlene Tracy | 4 | Daughter | — | Michigan |
| 65 | Robert Batchelder | 43 | Head | Assistant Superintendent | Kentucky |
| 66 | Rachel Batchelder | 41 | Wife | — | Kentucky |
| 67 | Evelyn Batchelder | 17 | Daughter | — | Kentucky |
| 68 | Roy Owen | 37 | Head | Truckdriver | Kentucky |
| 69 | Addie Owen | 37 | Wife | — | Kentucky |
| 70 | Jean Owen | 15 | Son | — | Kentucky |
| 71 | Rosa Lee Owen | 14 | Daughter | — | Kentucky |
| 72 | George Owen | 11 | Son | — | Kentucky |
| 73 | Carl Owen | 1 | Son | — | Kentucky |
| 74 | — | None | — | — | — |
| 75 | John H. Schmitt | 39 | Head | Postal Clerk | Kentucky |
| 76 | Anne Schmitt | 31 | Wife | — | Kentucky |
| 77 | Shirley Anne Schmitt | 2 | Daughter | — | Kentucky |
| 78 | Virginia Schmitt | 0 | Daughter | — | Kentucky |
| 79 | Herbert L. Taylor | 52 | Head | Foreman | Kentucky |
| 80 | Ora L. Taylor | 56 | Wife | — | Kentucky |
Related Census Records
Pedigree Summary
Thomas + 3 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)