WB
William Bender — 1940 US Census Record
Model Tree available1940 United States Federal Census · Alameda-County, California
Our Model Tree links this William Bender across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed), with identified parents H & Margaret — first a son (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Son
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Bender |
| Given Name | William T. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Oakland city |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Occupation | butcher |
| Industry | butcher shop |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Butcher |
| Township / Ward | Oakland City |
| Est. Birth Year | ~1905 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Thelma Bender | Daughter | — | 32 | ~1908 |
| William Bender | Son | — | 35 | ~1905 |
| Margaret Render | Head | — | 68 | ~1872 |
| Fred Bender | Son | — | 30 | ~1910 |
Census Appearances
1920
Alameda, California
Son, age 13
Alameda, California · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bender |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Nevada |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Alameda, California
Son, age 25
Alameda, California · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bender |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Nevada |
| Mother's Birthplace | Michigan |
| Occupation | Butcher |
| Industry | Small Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Alameda-County, California
Son, age 35
Alameda-County, California · implied b. ~1905 — 4 household members
| Surname | Bender |
| Given Name | William T. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Oakland city |
| 1935 Residence (County) | Alameda |
| Occupation | butcher |
| Industry | butcher shop |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Bender across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father H Bender (~0.92 confidence) and father Margaret Bender (~0.92 confidence) and mother Margaret Render (~0.92 confidence) and mother Margaret Bender (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
H Bender
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Margaret Bender
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Margaret Render
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Margaret Bender
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Bender
Son · 1940 · age 35 · b. ~1905 · California
★ You are viewing this record
Sibling
Fred Bender
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Bender
Sibling · 1940 · age 32
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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00438-00058)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alma L. Wilson | 54 | head | — | Oregon |
| 2 | Jeanette A. Wilson | 22 | daughter | Stenographer | California |
| 3 | Frank J. Borello | 33 | head | Dentist | California |
| 4 | Cecelia M. Borello | 31 | wife | — | Oregon |
| 5 | Martin J. Borello | 2 | son | — | California |
| 6 | Lawrence A. Borello | 0 | son | — | California |
| 7 | Magdalina M. Mccormick | 66 | mother-in-law | — | Alsace Lorraine |
| 8 | Elizabeth Kronenberg | 63 | head | — | Iowa |
| 9 | Arthur Briggs | 35 | son-in-law | Machine Operator | California |
| 10 | Eva M. Briggs | 35 | daughter | — | Oregon |
| 11 | Eberhardt E. Melen | 31 | son-in-law | Hardwood Floor Layer | Sweden |
| 12 | Walter Lewis | 52 | head | Straw-Boss | California |
| 13 | Maryann Lewis | 44 | wife | — | California |
| 14 | Barbara A. Lewis | 13 | daughter | — | California |
| 15 | Marlene V. Lewis | 5 | daughter | — | California |
| 16 | Henry Gilmore | 33 | head | Manager | North Dakota |
| 17 | Ruth Gilmore | 25 | wife | Sales Clerk | North Dakota |
| 18 | Howard A. Anderson | 23 | Roomer | Sales Clerk | North Dakota |
| 19 | Harry Esh Peter | 27 | Roomer | Airplane Mechanic | North Dakota |
| 20 | George E. Church | 64 | head | Engineer | Iowa |
| 21 | Mona Church | 50 | wife | — | Texas |
| 22 | Bernard Korn | 73 | head | — | Luxembourg |
| 23 | Amanda Korn | 68 | wife | — | Sweden |
| 24 | Harold E. Griffiths | 34 | head | Inside Electrician | California |
| 25 | Marie J. Griffiths | 31 | wife | — | Colorado |
| 26 | Ralph H. Griffiths | 8 | son | — | California |
| 27 | Patricia M. Griffiths | 2 | daughter | — | California |
| 28 | Margaret Render | 68 | head | — | Nevada |
| 29 | Thelma Bender | 32 | daughter | — | Montana |
| 30 | William T. Bender THIS PERSON | 35 | son | Butcher | Montana |
| 31 | Fred H. Bender | 30 | son | Teamster | Montana |
| 32 | Junius E. Smith | 65 | head | Barber | Kansas |
| 33 | Eva B. Smith | 63 | wife | — | Missouri |
| 34 | John M. Naismith | 38 | head | Machine Operator | Scotland |
| 35 | Josephine B. Naismith | 40 | wife | — | Ireland |
| 36 | Benjamin P. Brazil | 40 | head | Teamster | Hawaii |
| 37 | Eva Brazil | 35 | wife | — | California |
| 38 | Doris E. Brazil | 15 | daughter | — | California |
| 39 | Violet L. Brazil | 14 | daughter | — | California |
| 40 | Shirley M. Brazil | 7 | daughter | — | California |
Pedigree Summary
William + 2 siblings
Gen 1 · 4 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)