TT
Thelma Thomas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Sacramento, California
Our Model Tree links this Thelma Thomas across the 1920, 1930 and 1940 US Censuses in Sacramento, California (XGBoost, ~Confirmed), with identified parents E & Geo — first a son (b.~1918), then head of a 7-person household.
Age 12
b. ~1918
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Sacramento, California |
| Surname | Thomas |
| Given Name | Thelma |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | California |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | North Sacramento Town |
| 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 1930 census.
| Name | Relation to head | Relative to Thelma | Age | Birth yr |
|---|---|---|---|---|
| E Thomas | Head | — | 36 | ~1894 |
| Laura Thomas | Other | — | 30 | ~1900 |
| Eugene Thomas | Son | — | 10 | ~1920 |
| Sally Thomas | Daughter | — | 1 | ~1929 |
| Thelma Thomas | Son | — | 12 | ~1918 |
| Alawna Thomas | Daughter | — | 4 | ~1926 |
| Donald Thomas | Son | — | 8 | ~1922 |
Census Appearances
1920
Sacramento, California
Son, age 2
Sacramento, California · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Theano |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Sacramento, California
Son, age 12
Sacramento, California · implied b. ~1918 — 7 household members
| Surname | Thomas |
| Given Name | Thelma |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sacramento-County, California
Son, age 21
Sacramento-County, California · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Thearo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sacramento City |
| 1935 Residence (County) | Sacramento |
| Occupation | Clerk |
| Industry | Blue Print Co. |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 392 |
| Highest Grade | Hs 4 |
| 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 Thelma Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father E Thomas (~0.92 confidence) and father Geo Thomas (~0.92 confidence) and father Gus Thomas (~0.92 confidence) and mother Laura Thomas (~0.92 confidence) and mother Laurel Thomas (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
E Thomas
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Geo Thomas
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Gus Thomas
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Laura Thomas
b. ~1900
Source mother
● Household
· direct · ~0.92
Mother
Laurel Thomas
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thelma Thomas
Son · 1930 · age 12 · b. ~1918 · California
★ You are viewing this record
Sibling
Alawna Thomas
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Thomas
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Thomas
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sally Thomas
Sibling · 1930 · age 1
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
1930 US Federal Census — Sacramento, California
Open full size
1930 US Federal Census — Sacramento, California
Page Contents
49 people indexed on this census page (ia:1930:californiacensus00reel184:0842)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Duncan | 36 | Head | Laborer | Missouri |
| 2 | Ivy Duncan | 27 | Wife-H | Cutter | Missouri |
| 3 | John C. Duncan | 7 | Son | — | Missouri |
| 4 | James Robt. Higgins | 65 | Head | Foreman | Iowa |
| 5 | Alice L. Higgins | 41 | Wife-H | — | California |
| 6 | Alice H. Higgins | 11 | Daughter | — | California |
| 7 | William Rose | 30 | Head | Truck Driver | New York |
| 8 | Hazel Rose | 26 | Wife-H | — | Hawaii |
| 9 | William Jr. Rose | 3 | Son | — | California |
| 10 | Richard Rose | 2 | Son | — | California |
| 11 | Douglas Rose | 0 | Son | — | California |
| 12 | Walter H. Adams | 35 | Head | Loco Fireman | Michigan |
| 13 | Lillian L. Adams | 34 | Wife-H | — | Michigan |
| 14 | Joe Santos | 39 | Head | Laborer | Ireland |
| 15 | William Smith | 39 | Head | Clerical Worker | Colorado |
| 16 | Hazel Smith | 33 | Wife-H | Cutter | California |
| 17 | Herbert R. Smith | 10 | Son | — | California |
| 18 | Lucile Smith | 13 | Daughter | — | California |
| 19 | Virginia Smith | 7 | Daughter | — | California |
| 20 | Mary A. Smith | 73 | Mother | — | Illinois |
| 21 | William Hall | 36 | Head | Laborer | Missouri |
| 22 | Effie Hall | 34 | Wife-H | Maid | Missouri |
| 23 | Maxine Hall | 8 | Daughter | — | Missouri |
| 24 | Fred C. Trimmer | 31 | Head | Mechanist | Idaho |
| 25 | Pearl Trimmer | 26 | Wife-H | — | Oregon |
| 26 | James Trimmer | 7 | Son | — | Washington |
| 27 | Jackie Trimmer | 3 | Son | — | Washington |
| 28 | Donald E. Trimmer | 1 | Son | — | California |
| 29 | Loyd Ervin | 32 | Head | Painter | West Virginia |
| 30 | Jennie Ervin | 25 | Wife-H | Cutter | California |
| 31 | Mary J. Ervin | 4 | Daughter | — | California |
| 32 | Samuel J. Crum | 52 | Head | Carpenter | California |
| 33 | Inez L. Crum | 50 | Wife-H | — | California |
| 34 | Alice V. Crum | 19 | Daughter | Stenographer | California |
| 35 | Gladys M. Crum | 17 | Daughter | — | California |
| 36 | Gertrude V. Crum | 15 | Daughter | — | California |
| 37 | Delos G. Brown | 29 | Head | Bus Driver | New York |
| 38 | Elizabeth Brown | 30 | Wife-H | Supervisor | Utah |
| 39 | Delos G. Jr. Brown | 7 | Son | — | California |
| 40 | Harry E. Fowler | 47 | Head | Laborer | Pennsylvania |
| 41 | Phila A. Fowler | 36 | Wife-H | — | Pennsylvania |
| 42 | William M. Fowler | 10 | Son | — | New York |
| 43 | E. M. Thomas | 36 | Head | Night Watchman | Missouri |
| 44 | Laura M. Thomas | 30 | Wife-H | — | California |
| 45 | Thelma Thomas THIS PERSON | 12 | Son | — | California |
| 46 | Eugene Thomas | 10 | Son | — | California |
| 47 | Donald Thomas | 8 | Son | — | California |
| 48 | Alawna Thomas | 4 | Daughter | — | California |
| 49 | Sally Thomas | 1 | Daughter | — | California |
Related Census Records
Pedigree Summary
Thelma + 4 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 1930 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)