RW
Robert Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Robert Williams across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents John & J — first a son (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Williams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Glendora city |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Laborer (Farm) |
| Industry | Cit. Grower |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 888 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | Glendora City |
| Est. Birth Year | ~1902 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| John Williams | Head | — | 69 | ~1871 |
| Robert Williams | Son | — | 38 | ~1902 |
| Nellie Williams | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Los Angeles, …
Son, age 19
Los Angeles, California · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Wales |
| Mother's Birthplace | Minnesota |
| Occupation | Clerk |
| Industry | Retail Grocery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Los Angeles, …
Son, age 29
Los Angeles, California · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Wales |
| Mother's Birthplace | Minnesota |
| Occupation | Teacher |
| Industry | High School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Los-Angeles-County, California
Son, age 38
Los-Angeles-County, California · implied b. ~1902 — 3 household members
| Surname | Williams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Glendora city |
| 1935 Residence (County) | Los Angeles |
| Occupation | Laborer (Farm) |
| Industry | Cit. Grower |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 888 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 John Williams (~0.92 confidence) and father J Williams (~0.92 confidence) and father John Williams (~0.92 confidence) and mother Nellie Williams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Williams
b. ~1872
Source father
● Household
· direct · ~0.92
Father
J Williams
b. ~1870
Source father
● Household
· direct · ~0.92
Father
John Williams
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Nellie Williams
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Williams
Son · 1940 · age 38 · b. ~1902 · California
★ You are viewing this record
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
40 people indexed on this census page (nara:1940:m-t0627-00237-00516)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Otto R. Stack | 44 | Head | Farmer | Oklahoma |
| 2 | Ella Stack | 74 | Mother | — | Oklahoma |
| 3 | John Dripps | 67 | Head | Real Estate Broker | Pennsylvania |
| 4 | Caroline Dripps | 73 | Wife | — | Germany |
| 5 | Samuel Gaine | 64 | Head | Salesman | Missouri |
| 6 | Sina Gaine | 54 | Wife | Clerk | California |
| 7 | Albert Gaine | 17 | Son | — | California |
| 8 | Ruth Gaine | 13 | Daughter | — | California |
| 9 | Wanda Gaine | 9 | Daughter | — | California |
| 10 | Frances Gaine | 22 | Daughter-in-law | — | Oklahoma |
| 11 | Wilma Gaine | 7 | Granddaughter | — | California |
| 12 | Wilma Gaine | 5 | Granddaughter | — | California |
| 13 | Garland Gaine | 3 | Grandson | — | California |
| 14 | Elizabeth Gaine | 1 | Daughter | — | California |
| 15 | Alex Arreola | 55 | Head | Pottery Maker | Mexico |
| 16 | Victoria Arreola | 41 | Wife | — | Mexico |
| 17 | Luis Arreola | 16 | Son | — | Mexico |
| 18 | Estela Arreola | 15 | Daughter | — | California |
| 19 | Emma Arreola | 14 | Daughter | — | California |
| 20 | Juana Flores | 38 | Head | — | Mexico |
| 21 | Vernon D. Brost | 53 | Head | Farmer | Colorado |
| 22 | Martha Brost | 53 | Wife | — | Texas |
| 23 | Evelyn Brost | 18 | Daughter | — | California |
| 24 | Alice Leurton | 37 | Maid | Maid | Texas |
| 25 | Henry Maldona | 31 | Head | Laborer | California |
| 26 | Frances Maldona | 30 | Wife | — | Mexico |
| 27 | Mercedes Maldona | 6 | Son | — | California |
| 28 | William Wright | 79 | Head | Farmer | Missouri |
| 29 | Mary Wright | 73 | Wife | — | Iowa |
| 30 | A. Jah Wright | 38 | Daughter | — | Missouri |
| 31 | John C. L. Williams | 69 | Head | — | No. Wales |
| 32 | Nellie Williams | 61 | Wife | — | Minnesota |
| 33 | Robert Williams THIS PERSON | 38 | Son | Laborer (Farm) | Minnesota |
| 34 | Sidney Laird | 55 | Head | Farmer | Massachusetts |
| 35 | Florence Laird | 55 | Wife | — | New Jersey |
| 36 | Donald Laird | 22 | Son | Mechanic | California |
| 37 | Ernest Ware | 38 | Head | Laborer | Arkansas |
| 38 | Cora Ware | 29 | Wife | — | Arkansas |
| 39 | James Ware | 16 | Son | — | Texas |
| 40 | Marie Ware | 14 | Daughter | — | Arkansas |
Related Census Records
Pedigree Summary
Robert
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)