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William Robinson — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this William Robinson across the 1920, 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Robinson |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Diego City |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| William Robinson | Head | — | 42 | ~1898 |
| William Robinson | Son | — | 20 | ~1920 |
| W Robinson | Son | — | 12 | ~1928 |
| Daniel Robinson | Son | — | 18 | ~1922 |
| Ella Robinson | Spouse | — | 41 | ~1899 |
Census Appearances
1920
San Diego, …
Son, age
San Diego, California · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | William H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Mexico |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Diego, …
Son, age 10
San Diego, California · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | William H Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Unknown |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Diego-County, California
Son, age 20
San-Diego-County, California · implied b. ~1920 — 5 household members
| Surname | Robinson |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Hours Worked | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Robinson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Robinson (~0.92 confidence) and father William Robinson (~0.92 confidence) and father William Robinson (~0.92 confidence) and mother Lila Robinson (~0.92 confidence) and mother Belle Robinson (~0.92 confidence) and mother Ella Robinson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Robinson
b. ~1868
Source father
● Household
· direct · ~0.92
Father
William Robinson
b. ~1898
Source father
● Household
· direct · ~0.92
Father
William Robinson
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Lila Robinson
b. ~1900
Source mother
● Household
· direct · ~0.92
Mother
Belle Robinson
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Ella Robinson
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Robinson
Son · 1940 · age 20 · b. ~1920 · California
★ You are viewing this record
Sibling
Daniel Robinson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
W Robinson
Sibling · 1940 · age 12
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 — San-Diego-County, California
Open full size
1940 US Federal Census — San-Diego-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00448-00044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Verna Mushinski | 35 | Wife | — | Wisconsin |
| 2 | Mary A Mushinski | 13 | Daughter | — | Pennsylvania |
| 3 | Gary L Mushinski | 1 | Son | — | California |
| 4 | William L Robinson | 42 | Head | Superintendent | Oklahoma |
| 5 | Ella B Robinson | 41 | Wife | — | Mexico |
| 6 | William F Robinson THIS PERSON | 20 | Son | — | California |
| 7 | Daniel W Robinson | 18 | Son | Salesman | California |
| 8 | W Le Roy Robinson | 12 | Son | — | California |
| 10 | Marion L Belt | 52 | Head | Plaster Contractor | Iowa |
| 11 | Helen P Belt | 41 | Wife | — | Kansas |
| 12 | Orville A Belt | 24 | Son | Plasterer | Kansas |
| 13 | Marion L Jr Belt | 16 | Son | — | Kansas |
| 14 | Faith E Belt | 3 | Daughter | — | Kansas |
| 15 | Otto S Litzell | 40 | Head | Electrical Engineer | Indiana |
| 16 | Barbara A Litzell | 16 | Daughter | — | California |
| 17 | Myra Smith | 50 | Head | — | Pennsylvania |
| 18 | Ray Forshey | 33 | Head | Meat Cutter | Colorado |
| 19 | Cecil D Forshey | 36 | Wife | — | Wisconsin |
| 20 | Sandra Forshey | 3 | Daughter | — | California |
| 21 | Pearl S Winkliffe | 50 | Head | Nurse | New Hampshire |
| 22 | Audray C Turrell | 22 | Son | Quartermaster | California |
| 23 | Robert D Mcmullen | 42 | Head | Radioman | Arkansas |
| 24 | Mae Mcmullen | 42 | Wife | — | England |
| 25 | Mary J Mcmullen | 19 | Daughter | New Worker | Arkansas |
| 26 | Betty Mcmullen | 8 | Daughter | — | California |
| 27 | Fred G Hilty | 59 | Head | Salesman | Connecticut |
| 28 | Winnie I Hilty | 45 | Wife | — | Texas |
| 29 | Robert W Hilty | 13 | Son | — | Texas |
| 30 | James G Hilty | 12 | Son | — | Arizona |
| 31 | John F Hilty | 10 | Son | — | Arizona |
| 32 | Mary A Pierson | 83 | Mother | — | Connecticut |
| 33 | Wayne Hill | 53 | Head | — | Tennessee |
| 34 | Elsie R Hill | 40 | Wife | — | Tennessee |
| 35 | Norma Hill | 3 | Daughter | — | Tennessee |
| 36 | Le Roy Bonham | 36 | Head | Mechanic | Iowa |
| 37 | Laura Bonham | 29 | Wife | — | California |
| 38 | Shirley Anne Bonham | 4 | Daughter | — | California |
| 39 | Robert W Hayman | 29 | Head | Leading Man Mechanic | Illinois |
| 40 | Elsie E Hayman | 34 | Wife | — | Oregon |
Pedigree Summary
William + 2 siblings
Gen 1 · 6 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)