ET
Eugene Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Eugene Thomas across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Ed & Eugene — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Thomas |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eugene | Age | Birth yr |
|---|---|---|---|---|
| Blanche Thomas | Head | — | 42 | ~1898 |
| Myrette Thomas | Daughter | — | 24 | ~1916 |
| Melvin Thomas | Son | — | 19 | ~1921 |
| Eugene Thomas | Son | — | 23 | ~1917 |
Census Appearances
1920
St Louis, …
Son, age 3
St Louis, Missouri · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 13
St Louis, Missouri · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 23
St.-Louis-City-County, Missouri · implied b. ~1917 — 4 household members
| Surname | Thomas |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Industry | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Eugene Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ed Thomas (~0.92 confidence) and father Eugene Thomas (~0.92 confidence) and mother Blanche Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ed Thomas
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Eugene Thomas
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Blanche Thomas
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Eugene Thomas
Son · 1940 · age 23 · b. ~1917 · Missouri
★ You are viewing this record
Sibling
Melvin Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrette Thomas
Sibling · 1940 · age 24
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 — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02185-00005)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert J. Oliver | 57 | Head | Plumber | Arkansas |
| 2 | Della A. Oliver | 54 | Wife | — | Arkansas |
| 3 | Jennette Gilden | 27 | Lodger | Maid | Mississippi |
| 4 | Geneva Howard | 24 | Lodger | Maid | Mississippi |
| 5 | Robert Marion | 38 | Head | Laborer | Kentucky |
| 6 | Beatrice Marion | 38 | Wife | — | Missouri |
| 7 | Blanche Thomas | 42 | Head | — | Missouri |
| 8 | Melvin Thomas | 19 | Son | — | Missouri |
| 9 | Eugene Thomas THIS PERSON | 23 | Son | — | Missouri |
| 10 | Myrette Thomas | 24 | Daughter | Typist | Missouri |
| 11 | Cora Armstrong | 29 | Head | — | Mississippi |
| 12 | Ora Jackson | 39 | Head | Cement Worker | Tennessee |
| 13 | Laura B. Jackson | 40 | Wife | — | Tennessee |
| 14 | Emery Jackson | 19 | Son | Laborer | Missouri |
| 15 | Walter Jackson | 13 | Son | — | Missouri |
| 16 | Lorene Jackson | 9 | Daughter | — | Missouri |
| 17 | Roseta Summers | 31 | Head | — | Missouri |
| 18 | Carl Summers | 10 | Son | — | Missouri |
| 19 | Alvin Summers | 8 | Son | — | Missouri |
| 20 | Elizabeth Summers | 7 | Daughter | — | Missouri |
| 21 | Josephine Summers | 5 | Daughter | — | Missouri |
| 22 | John E. Summers | 3 | Son | — | Missouri |
| 23 | Hortense Summers | 2 | Daughter | — | Missouri |
| 24 | Julia Bailey | 77 | Head | — | Mississippi |
| 25 | Roxey Milburn | 39 | Head | — | Georgia |
| 26 | Mamie Milburn | 6 | Daughter | — | Missouri |
| 27 | Bernice Childress | 19 | Daughter | Maid | Georgia |
| 28 | Frank Childress | 17 | Son | Janitor | Georgia |
| 29 | Robert Childress | 14 | Son | — | Missouri |
| 30 | Maurine Childress | 12 | Daughter | — | Missouri |
| 31 | Thomas Tallman | 40 | Head | Laborer | Mississippi |
| 32 | Odelia Tallman | 39 | Wife | — | Arkansas |
| 33 | Olie V. Tallman | 19 | Son | Porter | Missouri |
| 34 | Ida M. Tallman | 15 | Daughter | — | Missouri |
| 35 | Minor Tallman | 13 | Son | — | Missouri |
| 36 | Ivanna Tallman | 12 | Daughter | — | Missouri |
| 37 | Penelope Tallman | 10 | Son | — | Missouri |
| 38 | Vash Tallman | 8 | Son | — | Missouri |
| 39 | Elizabeth Tallman | 6 | Daughter | — | Missouri |
| 40 | John E. Tallman | 5 | Son | — | Missouri |
Pedigree Summary
Eugene + 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)