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Robert Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butte-County, California
Our Model Tree links this Robert Williams across the 1920, 1930 and 1940 US Censuses in Butte-County, California (XGBoost, ~Confirmed), with identified parents Thomas & Homer — first a son (b.~1920), then head of a 12-person household.
Age 20
b. ~1920
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Butte-County, California |
| Surname | Williams |
| Given Name | Robert T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Chico city |
| 1935 Residence (County) | Butte |
| Additional Details | |
| Occupation | Crew Leader |
| Industry | Road Maintenance |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 402 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Crew Leader |
| Township / Ward | Chico 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Joy Williams | Daughter | — | 5 | ~1935 |
| Grace Williams | Daughter | — | 11 | ~1929 |
| Betty Williams | Daughter | — | 16 | ~1924 |
| Sadie Williams | Daughter | — | 7 | ~1933 |
| Rosalee Williams | Daughter | — | 9 | ~1931 |
| Frances Williams | Daughter | — | 12 | ~1928 |
| Florence Williams | Daughter | — | 14 | ~1926 |
| Homer Williams | Head | — | 50 | ~1890 |
| Homer Williams | Son | — | 24 | ~1916 |
| Robert Williams | Son | — | 20 | ~1920 |
| Richard Williams | Son | — | 18 | ~1922 |
| Hazel Williams | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Butte, California
Son, age
Butte, California · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Butte, California
Son, age 10
Butte, California · implied b. ~1920 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Butte-County, California
Son, age 20
Butte-County, California · implied b. ~1920 — 12 household members
| Surname | Williams |
| Given Name | Robert T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Chico city |
| 1935 Residence (County) | Butte |
| Occupation | Crew Leader |
| Industry | Road Maintenance |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 402 |
| Highest Grade | No 6 |
| 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 Robert Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Croucher (~0.92 confidence) and father Homer Williams (~0.92 confidence) and father Homer Williams (~0.92 confidence) and mother Hazel Williams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Croucher
b. ~1855
Source father
● Household
· direct · ~0.92
Father
Homer Williams
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Homer Williams
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Hazel Williams
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Williams
Son · 1940 · age 20 · b. ~1920 · California
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Sibling
Joy Williams
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Williams
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Williams
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalee Williams
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Homer Williams
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Williams
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sadie Williams
Sibling · 1940 · age 7
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 — Butte-County, California
Open full size
1940 US Federal Census — Butte-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00192-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida Vance | 64 | Mother | Seamstress | Missouri |
| 2 | Clarence D. Hottel | 25 | Head | Salesman | California |
| 3 | Viola R. Hottel | 22 | Wife | — | Oregon |
| 4 | Donald L. Hottel | 2 | Son | — | California |
| 5 | Eugene Quaid | 55 | Head | Carpenter | Michigan |
| 6 | Beulah Quaid | 54 | Wife | — | Illinois |
| 7 | Keith Quaid | 26 | Son | Distributor | Washington |
| 8 | Carl Ticeman | 29 | Head | Clerk | Oklahoma |
| 9 | Ida L. Ticeman | 25 | Wife | — | Alabama |
| 10 | Carlyon S. Ticeman | 9 | Daughter | — | Oklahoma |
| 11 | Fred Willis | 54 | Head | Superintendent | Arizona |
| 12 | Zelma Willis | 42 | Wife | — | Missouri |
| 13 | Ed Willis | 51 | Son | Laborer | Nevada |
| 14 | Venice Mrs. Harris | 65 | Mother | House Keeper | Missouri |
| 15 | Homer Williams | 50 | Head | Driver | California |
| 16 | Hazel Williams | 43 | Wife | — | California |
| 17 | Homer Williams | 24 | Son | Laborer | California |
| 18 | Betty Jane Williams | 16 | Daughter | — | California |
| 19 | Florence Williams | 14 | Daughter | — | California |
| 20 | Frances Williams | 12 | Daughter | — | California |
| 21 | Grace Williams | 11 | Daughter | — | California |
| 22 | Rosalee Williams | 9 | Daughter | — | California |
| 23 | Sadie Williams | 7 | Daughter | — | California |
| 24 | Joy Ann Williams | 5 | Daughter | — | California |
| 25 | Robert T. Williams THIS PERSON | 20 | Son | Crew Leader | California |
| 26 | Richard Williams | 18 | Son | Laborer | California |
| 27 | Lewis Patterson | 34 | Head | Laborer | Oklahoma |
| 28 | Helen Patterson | 25 | Wife | — | Arkansas |
| 29 | Lewis Jr. Patterson | 5 | Son | — | Oklahoma |
| 30 | Joyce Patterson | 2 | Daughter | — | California |
| 31 | Andrew Barb | 41 | Head | Driver | Spain |
| 32 | Carmen Barb | 31 | Wife | — | Hawaii |
| 33 | Frank Barb | 12 | Son | — | California |
| 34 | Eunice Barb | 10 | Daughter | — | California |
| 35 | Robert A. Barb | 2 | Son | — | California |
| 36 | Chas R. Loven | 22 | Head | Clucker | North Dakota |
| 37 | Jean Loven | 25 | Wife | — | Idaho |
| 38 | Herman Hummel | 60 | Head | Sales Woman | Kansas |
| 39 | Arley J. Hummel | 58 | Wife | Salesman | Utah |
| 40 | Chas L. Rollins | 31 | Step son | Salesman | Utah |
Pedigree Summary
Robert + 9 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)