JW
James Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this James Williams across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 4-person household.
Age 63
b. ~1877
Male
Head
Born: Nevada
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Williams |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Nevada |
| 1935 Residence (City) | Oakland City |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Occupation | Iron Worker |
| Industry | Structural Steel |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 1200 |
| Highest Grade | M 8 |
| 1935 Residence | Same place |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
| Occupation | Iron Worker |
| Township / Ward | Oakland City |
| Est. Birth Year | ~1877 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Geraldine Williams | Daughter | — | 19 | ~1921 |
| James Williams | Head | — | 63 | ~1877 |
| Chester Williams | Son | — | 34 | ~1906 |
| Gertrude Williams | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Alameda, California
Head, age 43
Alameda, California · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Nevada |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Occupation | Chipper & Calker |
| Industry | Shipyard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
1930
Alameda, California
Head, age 53
Alameda, California · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | James R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Nevada |
| Age at First Marriage | 26 |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Occupation | Iron worker |
| Industry | Foundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
1940
Alameda-County, California
Head, age 63
Alameda-County, California · implied b. ~1877 — 4 household members
| Surname | Williams |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Nevada |
| 1935 Residence (City) | Oakland City |
| 1935 Residence (County) | Alameda |
| Occupation | Iron Worker |
| Industry | Structural Steel |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 1200 |
| Highest Grade | M 8 |
| 1935 Residence | Same place |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
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 James Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Williams
Head · 1940 · age 63 · b. ~1877 · 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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00442-00047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert Palmer | 10 | son | — | Illinois |
| 2 | Angela Brunelli | 36 | Head | Seamstress | Italy |
| 3 | Yolanda Brunelli | 15 | daughter | — | California |
| 4 | Louise Hanson | 46 | Head | Operator | California |
| 5 | James Linne | 64 | Head | Tailor | Eire |
| 6 | Mary Linne | 60 | sister | Saleslady | Eire |
| 7 | Edward Linne | 58 | brother | Sailor | Eire |
| 8 | James Williams THIS PERSON | 63 | Head | Iron Worker | Nevada |
| 9 | Gertrude Williams | 56 | wife | — | Nevada |
| 10 | Chester Williams | 34 | son | Butcher | Nevada |
| 11 | Geraldine Williams | 19 | daughter | Glass Maker | California |
| 12 | Michael Buckley | 53 | Head | Sergeant | Eire |
| 13 | Margaret Buckley | 50 | wife | — | Eire |
| 14 | Madeline Buckley | 26 | daughter | Stenographer | California |
| 16 | Oliver May | 58 | Head | — | Missouri |
| 17 | Adelphine May | 54 | wife | — | Kansas |
| 18 | Walter May | 32 | son | Presser | Kansas |
| 19 | Mildred May | 27 | daughter | — | Kansas |
| 20 | Opal May | 24 | daughter | — | Louisiana |
| 21 | Fred Caprice | 33 | Head | Finisher | Colorado |
| 22 | Hessa Caprice | 33 | wife | — | Pennsylvania |
| 23 | Jack Caprice | 3 | son | — | California |
| 24 | Dickie Caprice | 1 | son | — | California |
| 25 | Leon Triberti | 35 | Head | Mechanic | Italy |
| 26 | Mary Triberti | 36 | wife | — | Massachusetts |
| 27 | Leon Triberti | 10 | son | — | California |
| 28 | Ramona Triberti | 3 | daughter | — | California |
| 29 | Phillip Hackney | 63 | Head | Cook | Virginia |
| 30 | Carrie Hackney | 50 | wife | — | Virginia |
| 31 | John Battell | 48 | Boarder | Fireman | Nebraska |
| 32 | Richard Battell | 73 | Boarder | — | England |
| 33 | Amanda Crockett | 45 | Head | — | Central America |
| 34 | George Crockett | 16 | son | — | California |
| 35 | Stanley Crockett | 14 | son | — | California |
| 36 | John Crockett | 8 | son | — | California |
| 37 | Frances Pineda | 71 | mother | — | Central America |
| 38 | Mae Mcguire | 59 | Head | — | California |
| 39 | Edward Mcguire | 18 | grandson | — | California |
| 40 | Gladys Mashart | 37 | daughter | — | California |
Related Census Records
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)