TS
Thomas Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Thomas Smith across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Harry & Thomas — first a son (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Smith |
| Given Name | Thomas D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Monterey Park |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Plasterer |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Plasterer |
| Township / Ward | El Monte Township |
| Est. Birth Year | ~1913 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Smith | Daughter | — | 25 | ~1915 |
| Harry Smith | Head | — | 55 | ~1885 |
| Edward Smith | Son | — | 21 | ~1919 |
| Richard Smith | Son | — | 3 | ~1937 |
| Thomas Smith | Son | — | 27 | ~1913 |
| Eunice Smith | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Los Angeles, …
Son, age 6
Los Angeles, California · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Indiana |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 17
Los Angeles, California · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Thomas L. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Indiana |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 27
Los-Angeles-County, California · implied b. ~1913 — 6 household members
| Surname | Smith |
| Given Name | Thomas D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Monterey Park |
| 1935 Residence (County) | Los Angeles |
| Occupation | Plasterer |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| 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 Thomas Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Smith (~0.92 confidence) and father Thomas Smith (~0.92 confidence) and father Thomas Smith (~0.92 confidence) and mother Marguerite Smith (~0.92 confidence) and mother Eunice Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Smith
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Thomas Smith
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Thomas Smith
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Marguerite Smith
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Eunice Smith
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Smith
Son · 1940 · age 27 · b. ~1913 · California
★ You are viewing this record
Sibling
Richard Smith
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Smith
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Smith
Sibling · 1940 · age 25
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00228-00278)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence A. Perkins | 50 | Wife | Designer | Minnesota |
| 2 | William J. Perkins | 29 | Son | Mail Clerk | California |
| 3 | Evelyn E. Perkins | 20 | Daughter | Saleswoman | California |
| 4 | Victor W. Threadgold | 36 | Head | Salesman | So Dakota |
| 5 | Helen D. Threadgold | 34 | Wife | — | So Dakota |
| 6 | Joyce Threadgold | 12 | Daughter | — | California |
| 7 | June Threadgold | 8 | Daughter | — | California |
| 8 | Elra C. Church | 64 | Head | Caretaker | Indiana |
| 9 | Harry R. Smith | 55 | Head | Truck Driver | Pennsylvania |
| 10 | Eunice E. Smith | 50 | Wife | — | England |
| 11 | Thomas D. Smith THIS PERSON | 27 | Son | Plasterer | California |
| 12 | Edward J. Smith | 21 | Son | Truck Driver | California |
| 13 | Dorothy L. Smith | 25 | Daughter | — | California |
| 14 | Richard D. Smith | 3 | Son | — | California |
| 15 | William D. Runkel | 53 | Head | Carpenter | Illinois |
| 16 | Myrtle G. Runkel | 52 | Wife | — | Missouri |
| 17 | Harry E. Hale | 39 | Head | Motion Picture Operator | Arkansas |
| 18 | Betty E. Hale | 31 | Wife | — | Oklahoma |
| 19 | Nina P. Hale | 6 | Daughter | — | California |
| 20 | Anna D. Hillebrand | 57 | Mother | — | Missouri |
| 21 | Milton C. Berg | 54 | Head | Machinist | Iowa |
| 22 | May Berg | 54 | Wife | — | Canada |
| 23 | Harry A. Houry | 43 | Head | Salesman | Kansas |
| 24 | Golda Houry | 40 | Wife | — | Michigan |
| 25 | Harry E. Salim | 45 | Brother-in-law | Painter | Pennsylvania |
| 26 | Clarence L. Ferris | 31 | Head | Clerk | Maine |
| 27 | Madeline L. Ferris | 28 | Wife | — | Ohio |
| 28 | Richard L. Ferris | 7 | Son | — | California |
| 29 | Carolee Ferris | 2 | Daughter | — | California |
| 30 | Ollie Lund | 55 | Head | Florist | Norway |
| 31 | Clara Lund | 54 | Wife | — | Norway |
| 32 | Didrick Lund | 25 | Son | Laborer | Norway |
| 33 | Clara Lund | 20 | Daughter | — | Norway |
| 34 | Hans E. Lund | 15 | Son | — | Norway |
| 35 | Gudrun A. Lund | 14 | Daughter | — | Norway |
| 36 | Beverly Lund | 2 | Niece | — | California |
| 37 | Harry D. Hoag | 35 | Head | Carpenter | Missouri |
| 38 | Clara A. Hoag | 48 | Wife | — | Missouri |
| 39 | Harry D. Jr. Hoag | 11 | Son | — | California |
| 40 | William H. Hoag | 8 | Son | — | Idaho |
Pedigree Summary
Thomas + 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)