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William Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this William Schmidt across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Oscar & Helen — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Schmidt |
| Given Name | William C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Oscar Schmidt | Head | — | 59 | ~1881 |
| Mark Schmidt | Son | — | 28 | ~1912 |
| Herbert Schmidt | Son | — | 29 | ~1911 |
| William Schmidt | Son | — | 26 | ~1914 |
| Helen Schmidt | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Los Angeles, …
Son, age 6
Los Angeles, California · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Germany |
| Mother's Birthplace | Canada |
| Occupation | none |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1930
Los Angeles, …
Son, age 16
Los Angeles, California · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Germany |
| Mother's Birthplace | Canada-English |
| Can Read/Write | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Los-Angeles-County, California
Son, age 26
Los-Angeles-County, California · implied b. ~1914 — 5 household members
| Surname | Schmidt |
| Given Name | William C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 William Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oscar Schmidt (~0.92 confidence) and mother Helen Schmidt (~0.92 confidence) and mother Helen Schmidt (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Schmidt
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Helen Schmidt
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Helen Schmidt
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Schmidt
Son · 1940 · age 26 · b. ~1914 · California
★ You are viewing this record
Sibling
Herbert Schmidt
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mark Schmidt
Sibling · 1940 · age 28
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
38 people indexed on this census page (nara:1940:m-t0627-00376-00302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jane Smith | 14 | Daughter | New Worker | California |
| 2 | Beverly Smith | 12 | Daughter | — | California |
| 3 | Willie J. Smith | 10 | Son | — | California |
| 4 | Jack G. Hirsch | 39 | Head | Proprietor | Illinois |
| 5 | Sadie Hirsch | 39 | Wife | — | Massachusetts |
| 6 | Adolph Hirsch | 7 | Son | — | California |
| 7 | Louie Chamberlain | 30 | Head | Aircraft Mechanic | West Virginia |
| 8 | Violet Chamberlain | 26 | Wife | Stenographer | Minnesota |
| 9 | Albert W. Belden | 54 | Head | — | Missouri |
| 10 | Lois Belden | 44 | Wife | — | Pennsylvania |
| 11 | Proctor Ralla | 40 | Head | Salesman | Canada-English |
| 12 | Iris Ralla | 35 | Wife | — | California |
| 13 | Thomas Ralla | 6 | Son | — | California |
| 14 | Oscar R. Schmidt | 59 | Head | Retail Food | Germany |
| 15 | Helen G. Schmidt | 57 | Wife | — | Canada-English |
| 16 | Herbert H. Schmidt | 29 | Son | Salesman | Ohio |
| 17 | Mark G. Schmidt | 28 | Son | Reporter | Ohio |
| 18 | William C. Schmidt THIS PERSON | 26 | Son | — | Arizona |
| 19 | Stephen Easter | 34 | Head | Automobile Mechanic | Indiana |
| 20 | Helen Easter | 28 | Wife | — | New York |
| 21 | Gail Easter | 2 | Daughter | — | California |
| 22 | Jack Curtis Haas | 41 | Head | Butcher | Colorado |
| 23 | Margaret C. Haas | 41 | Wife | Stenographer | Canada-English |
| 24 | Malcolm Haas | 9 | Son | — | California |
| 25 | Della Haas | 67 | Mother | — | Illinois |
| 26 | Margaret Evelyn Greig | 65 | Mother-in-law | — | Canada-English |
| 27 | Albert Bouche | 49 | Head | Tile Setter | Arkansas |
| 28 | Mary D. Bouche | 46 | Wife | — | Michigan |
| 29 | Mary F. Bouche | 12 | Daughter | — | California |
| 30 | Rene Bouche | 8 | Daughter | — | California |
| 31 | Charles Rosoff | 44 | Head | Composer-Pianist | New York |
| 32 | Clara Rosoff | 43 | Wife | — | New York |
| 33 | Schuyler Sanford | 30 | Head | Cameraman | Ohio |
| 34 | Gertrude Sanford | 28 | Wife | Actress | Washington |
| 35 | Sherry Kay Sanford | 6 | Daughter | — | California |
| 36 | Vernon Ray | 42 | Head | Chauffeur | Oklahoma |
| 37 | Lucille Ray | 34 | Wife | — | Washington |
| 38 | Anita Jean Ray | 14 | Daughter | — | California |
Pedigree Summary
William + 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)