DT
Donald Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Donald Thomas across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 20-person household.
Age 11
b. ~1929
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Thomas |
| Given Name | Donald R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Maywood City |
| Additional Details | |
| Highest Grade | No 5 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Maywood City |
| Est. Birth Year | ~1929 |
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.
20 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thomas | Daughter | — | 8 | ~1932 |
| Mervin Thomas | Son | — | 21 | ~1919 |
| Bud Thomas | Son | — | 15 | ~1925 |
| Ruby Schmuckle | Spouse | — | 23 | ~1917 |
| Leah Jensen | Daughter | — | 17 | ~1923 |
| James Schmuckle | Son | — | 3 | ~1937 |
| Thelma Otto | Daughter | — | 14 | ~1926 |
| Naomi Jensen | Daughter | — | 7 | ~1933 |
| Clifford Jensen | Son | — | 11 | ~1929 |
| Richard Daisy | Son | — | 14 | ~1926 |
| Melvin Beck | Son | — | 23 | ~1917 |
| Maxwell Hillyer | Other | — | 33 | ~1907 |
| Herbert Jensen | Son | — | 19 | ~1921 |
| Alvin Beck | Son | — | 26 | ~1914 |
| Fred Schmuckle | Other | — | 42 | ~1898 |
| Cecelia Freed | Spouse | — | 37 | ~1903 |
| Harold Coleman | Son | — | 7 | ~1933 |
| Donald Thomas | Son | — | 11 | ~1929 |
| Ethel Coleman | Daughter | — | 29 | ~1911 |
| Virginia Schmuckle | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Los Angeles, …
Son, age 1
Los Angeles, California · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Can Read/Write | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 11
Los-Angeles-County, California · implied b. ~1929 — 20 household members
| Surname | Thomas |
| Given Name | Donald R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Maywood City |
| Highest Grade | No 5 |
| 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 Donald Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Thomas
Son · 1940 · age 11 · b. ~1929 · California
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Sibling
Harold Coleman
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Jensen
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Coleman
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Naomi Jensen
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Schmuckle
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Otto
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leah Jensen
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mervin Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Beck
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bud Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clifford Jensen
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Daisy
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Schmuckle
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Beck
Sibling · 1940 · age 26
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-t0627-00247-00268)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Schmuckle | 42 | nephew | Automobile Mechanic | England |
| 2 | Ruby E. Schmuckle | 23 | wife | — | Indiana |
| 3 | Virginia Schmuckle | 3 | daughter | — | New Mexico |
| 4 | James Schmuckle | 3 | son | — | California |
| 5 | Cecelia Freed | 37 | wife | — | Pennsylvania |
| 6 | Ethel L. Coleman | 29 | daughter | — | California |
| 7 | Harold C. Coleman | 7 | son | — | California |
| 8 | Herbert Jensen | 19 | son | Air Conditioning | Utah |
| 9 | Leah Jensen | 17 | daughter | Waitress | Utah |
| 10 | Clifford Jensen | 11 | son | — | California |
| 11 | Naomi C. Jensen | 7 | daughter | — | California |
| 12 | Alvin D. Beck | 26 | son | Machine Operator | Minnesota |
| 13 | Melvin L. Beck | 23 | son | Filling Foot | Minnesota |
| 14 | Maxwell Hillyer | 33 | brother | — | Missouri |
| 15 | Richard Daisy | 14 | son | — | Michigan |
| 16 | Mervin Thomas | 21 | son | Messenger | California |
| 17 | Bud J. Thomas | 15 | son | Salesman | California |
| 18 | Donald R. Thomas THIS PERSON | 11 | son | — | California |
| 19 | Margaret Thomas | 8 | daughter | — | California |
| 20 | Thelma L. Otto | 14 | daughter | — | California |
| 21 | Arthur Mendelsohn | 57 | head | Watch Maker | Nebraska |
| 22 | Leah Mendelsohn | 49 | wife | — | Nebraska |
| 23 | Morgan Bevan | 16 | step-son | Salesman | Oregon |
| 24 | William Bevan | 14 | step-son | — | Oregon |
| 25 | Esther Harmon | 30 | sister-in-law | Machine Operator | Missouri |
| 26 | Leland A. Harmon | 12 | nephew | — | Missouri |
| 27 | Arthur L. Harmon | 10 | nephew | — | Missouri |
| 28 | Gerald Hancock | 7 | son | — | California |
| 29 | Vern R. Litwood | 26 | head | Beverage Distributor | Missouri |
| 30 | Phyllis Litwood | 29 | wife | — | Canada-English |
| 31 | M. Daisy Litwood | 46 | mother | — | Missouri |
| 32 | Goldie M. Pruitt | 17 | lodger | — | Illinois |
| 33 | Darlene M. Pruitt | 0 | lodger's daughter | — | California |
| 34 | Harold Sharp | 30 | lodger | Truck Driver | Iowa |
| 35 | Idabelle Pottinger | 36 | wife | — | Texas |
| 36 | Billie J. Pottinger | 16 | daughter | — | California |
| 37 | Charles F. Gladeau | 24 | head | Attendant | Mississippi |
| 38 | Genevieve Gladeau | 20 | wife | Machine Operator | Nebraska |
| 39 | Dixon P. Brown | 44 | head | Truck Driver | Arkansas |
| 40 | Nina Brown | 35 | wife | Cook | Utah |
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)