ET
Eugene Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sacramento-County, California
Our Model Tree links this Eugene Thomas across the 1930 and 1940 US Censuses in Sacramento-County, California (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sacramento-County, California |
| Surname | Thomas |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sacramento City |
| 1935 Residence (County) | Sacramento |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Sacramento City |
| Est. Birth Year | ~1920 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eugene | Age | Birth yr |
|---|---|---|---|---|
| Lowell Thomas | Son | — | 8 | ~1932 |
| Laurel Thomas | Spouse | — | 40 | ~1900 |
| Thearo Thomas | Son | — | 21 | ~1919 |
| Gloria Thomas | Daughter | — | 14 | ~1926 |
| Donald Thomas | Son | — | 18 | ~1922 |
| Eugene Thomas | Son | — | 20 | ~1920 |
| Geo Thomas | Head | — | 45 | ~1895 |
| Sally Thomas | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Sacramento, California
Son, age 10
Sacramento, California · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Missouri |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sacramento-County, California
Son, age 20
Sacramento-County, California · implied b. ~1920 — 8 household members
| Surname | Thomas |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sacramento City |
| 1935 Residence (County) | Sacramento |
| Highest Grade | Hs 1 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eugene Thomas
Son · 1940 · age 20 · b. ~1920 · California
★ You are viewing this record
Sibling
Thearo Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Thomas
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lowell Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gloria Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sally Thomas
Sibling · 1940 · age 11
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 — Sacramento-County, California
Open full size
1940 US Federal Census — Sacramento-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00284-00171)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida May Jenkins | 58 | Wife | — | California |
| 2 | George R Jr Jenkins | 20 | Son | Draftsman | California |
| 4 | Lucille G Tucker | 37 | Head | Cook | California |
| 5 | Pete Actis | 31 | Head | Plasterer | Michigan |
| 6 | Dorothy Actis | 28 | Wife | Stenographer | California |
| 7 | Jacob Schaeffer | 45 | Head | Barber | South Dakota |
| 8 | Annetta Schaeffer | 43 | Wife | — | South Dakota |
| 9 | Dorothy Haese | 23 | Lodger | Typist | Nevada |
| 10 | Harry Dam Barry | 67 | Head | — | Pennsylvania |
| 11 | Hazel Dam Barry | 50 | Wife | Proprietor | Pennsylvania |
| 12 | Clara Portis | 33 | Head | — | California |
| 13 | Emmett Q Portis | 15 | Son | — | California |
| 14 | Lois Portis | 12 | Daughter | — | California |
| 15 | Lloyd Portis | 10 | Son | — | California |
| 16 | Patsy Portis | 10 | Daughter | — | California |
| 17 | Le Roy Portis | 15 | Nephew | New Worker | California |
| 18 | Charlotte Castro | 34 | Head | — | California |
| 19 | Luella Castro | 16 | Daughter | — | California |
| 20 | Robert Castro | 15 | Son | — | California |
| 21 | Colleen Castro | 13 | Daughter | — | California |
| 22 | Neva Oliver | 38 | Sister | Seamstress | California |
| 23 | Tom Lambros | 69 | Head | Cook (Owner) | Greece |
| 24 | Jane Lambros | 40 | Wife | — | Greece |
| 25 | Jim Lambros | 31 | Son | Flasher | Illinois |
| 26 | Catherine Lambros | 20 | Daughter | — | Indiana |
| 27 | Harry Lambros | 19 | Son | — | Illinois |
| 28 | Nick Lambros | 18 | Son | — | Indiana |
| 29 | Geo Thomas | 45 | Head | Laborer | New York |
| 30 | Laurel Thomas | 40 | Wife | — | California |
| 31 | Thearo Thomas | 21 | Son | Clerk | California |
| 32 | Eugene Thomas THIS PERSON | 20 | Son | — | California |
| 33 | Donald Thomas | 18 | Son | — | California |
| 34 | Gloria Thomas | 14 | Daughter | — | California |
| 35 | Sally Thomas | 11 | Daughter | — | California |
| 36 | Lowell Thomas | 8 | Son | — | California |
| 37 | Leo King | 42 | Head | Cook | Utah |
| 38 | Sena King | 46 | Wife | Proprietor | Alabama |
| 39 | Lorraine King | 18 | Daughter | — | Idaho |
| 40 | Jean King | 13 | Daughter | — | Calif. |
Related Census Records
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)