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William Stevens — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this William Stevens across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents William & Mamie — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Stevens |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Student-Janitor |
| Industry | Private Hospital |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 300 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Student-Janitor |
| 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 |
|---|---|---|---|---|
| Zula Sommerville | Daughter | — | 29 | ~1911 |
| William Stevens | Head | — | 60 | ~1880 |
| Earl Sommerville | Other | — | 4 | ~1936 |
| William Stevens | Son | — | 26 | ~1914 |
| Mamie Stevens | Spouse | — | 60 | ~1880 |
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 | Stevens |
| Given Name | William H. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Texas |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 16
Los Angeles, California · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Stevens |
| Given Name | William H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 26
Los-Angeles-County, California · implied b. ~1914 — 5 household members
| Surname | Stevens |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Student-Janitor |
| Industry | Private Hospital |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 300 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| 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 William Stevens across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Stevens (~0.92 confidence) and mother Mamie Stevens (~0.92 confidence) and father William Stevens (~0.92 confidence) and father William Stevens (~0.92 confidence) and mother Maggie Stevens (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Stevens
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mamie Stevens
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
William Stevens
b. ~1881
Source father
● Household
· direct · ~0.92
Father
William Stevens
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Maggie Stevens
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Stevens
Son · 1940 · age 26 · b. ~1914 · California
★ You are viewing this record
Sibling
Zula Sommerville
Sibling · 1940 · age 29
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
39 people indexed on this census page (nara:1940:m-t0627-00416-00642)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles Moore | 30 | Lodger | Writer | Louisiana |
| 42 | Simon Sercey | 74 | Head | — | Louisiana |
| 43 | Albertha Sercey | 57 | Wife | — | Mississippi |
| 44 | Mary Middleton | 80 | Mother-in-law | — | Louisiana |
| 45 | Peggy Dorsey | 3 | Grand-daughter | — | California |
| 46 | William Stevens | 60 | Head | Gardener | Texas |
| 47 | Mamie Stevens | 60 | Wife | Domestic | Tennessee |
| 48 | William Jr. Stevens THIS PERSON | 26 | Son | Student-Janitor | California |
| 49 | Zula Sommerville | 29 | Daughter | Music Teacher | California |
| 50 | Earl Sommerville | 4 | Grandson | — | California |
| 51 | Don Foo Tom | 33 | Head | Butcher | China |
| 52 | Rose Tom | 26 | Wife | — | California |
| 53 | David Tom | 9 | Son | — | California |
| 54 | Dorothy Tom | 6 | Daughter | — | California |
| 55 | John Chin | 30 | Lodger | Proprietor | China |
| 56 | George Wong | 29 | Lodger | Proprietor | China |
| 57 | George Imai | 63 | Head | Proprietor | Japan |
| 58 | Fusa Imai | 55 | Wife | Clerk | Japan |
| 59 | Tatsuo Imai | 26 | Son | Proprietor | California |
| 60 | Mitsuo Imai | 23 | Son | Truck Driver | California |
| 61 | Shimeko Imai | 19 | Daughter | Clerk-Helper | California |
| 62 | Masaru Imai | 14 | Son | — | California |
| 63 | Emma Jones | 70 | Head | — | Kentucky |
| 64 | Lula Majors | 50 | Lodger | Seamstress | Texas |
| 65 | Ira Johnson | 37 | Head | Waiter | Arkansas |
| 66 | Ira Johnson | 31 | Wife | Beautician | Arkansas |
| 67 | Ira Hobson | 44 | Head | Janitor | Mississippi |
| 68 | Lela Hobson | 42 | Wife | — | Mississippi |
| 69 | William Green | 30 | Head | Cook | Texas |
| 70 | Ella Mae Green | 26 | Wife | — | Mississippi |
| 71 | Edward Wallace | 33 | Head | Cutter | Arkansas |
| 72 | Jessie Wallace | 28 | Wife | — | Nebraska |
| 73 | Edward Jr. Wallace | 10 | Son | — | Nebraska |
| 74 | Beverly Wallace | 7 | Daughter | — | Nebraska |
| 75 | Edna Wallace | 37 | Sister | Domestic | Arkansas |
| 76 | John Danielian | 50 | Head | Janitor | Armenia |
| 77 | Emma Danielian | 39 | Wife | — | Armenia |
| 78 | Lillian Danielian | 19 | Daughter | Operator | California |
| 79 | Leo Danielian | 15 | Son | — | California |
Pedigree Summary
William + 1 sibling
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)