JW
Jean Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Jean Williams across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Williams |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Pasadena |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Pasadena |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jean | Age | Birth yr |
|---|---|---|---|---|
| Raymond Williams | Son | — | 15 | ~1925 |
| Roland Williams | Head | — | 43 | ~1897 |
| Marie Williams | Daughter | — | 6 | ~1934 |
| Mary Williams | Daughter | — | 9 | ~1931 |
| Katherine Williams | Spouse | — | 36 | ~1904 |
| Roland Williams | Son | — | 2 | ~1938 |
| Robert Williams | Son | — | 12 | ~1928 |
| Jean Williams | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Los Angeles, …
Daughter, age 7
Los Angeles, California · implied b. ~1923 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Joan |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 18
Los-Angeles-County, California · implied b. ~1922 — 8 household members
| Surname | Williams |
| Given Name | Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Pasadena |
| 1935 Residence (County) | Los Angeles |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 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 Jean Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jean Williams
Daughter · 1940 · age 18 · b. ~1922 · California
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Sibling
Raymond Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Williams
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roland Williams
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Williams
Sibling · 1940 · age 9
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00242-00304)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Maude M. Vanderwort | 41 | Head | Real Estate | Minnesota |
| 3 | Jeanette Vanderwort | 20 | Daughter | Stenographer | Idaho |
| 4 | James Vanderwort | 15 | Son | — | Washington |
| 5 | Anne M. Bannister | 74 | Lodger | — | Massachusetts |
| 6 | Bonnie I. Fox | 29 | Head | Stenographer | Texas |
| 7 | Virginia Fox | 8 | Daughter | — | California |
| 8 | Annie Rose | 42 | Head | Seamstress | Ohio |
| 9 | Francis La Liberte | 45 | Head | Barber | Massachusetts |
| 10 | Wilda La Liberte | 29 | Wife | — | New Hampshire |
| 11 | Francis Jr. La Liberte | 9 | Son | — | California |
| 12 | Leonard Van Broyen | 68 | Head | — | Holland |
| 13 | Nellie E. Van Broyen | 67 | Wife | — | Canada-English |
| 14 | Frances Hill | 58 | Head | Seamstress | Iowa |
| 15 | Verna J. Hill | 28 | Daughter | Bookkeeper | South Dakota |
| 16 | Elizabeth Ann Kennedy | 68 | Head | — | Canada-English |
| 17 | Goldsmith Browne | 60 | Head | Contractor | Illinois |
| 18 | Marie C. Browne | 58 | Wife | — | Illinois |
| 19 | Leverett H. Stevens | 55 | Head | Salesman | Wisconsin |
| 20 | Caroline R. Stevens | 43 | Wife | — | Ohio |
| 21 | Cecelia Stevens | 18 | Daughter | Saleslady | California |
| 22 | Douglas Stevens | 13 | Son | — | California |
| 23 | Frieda Tuesmann | 38 | Head | Cook | Germany |
| 24 | Mark Seates | 70 | Head | Landscape Gardener | Tennessee |
| 25 | Fannie Seates | 60 | Wife | — | Tennessee |
| 26 | George P. Karcher | 31 | Lodger | Advertising Salesman | Illinois |
| 27 | Roland Williams | 43 | Head | Cement Finisher | Missouri |
| 28 | Katherine Williams | 36 | Wife | — | Pennsylvania |
| 29 | Jean Williams THIS PERSON | 18 | Daughter | — | California |
| 30 | Raymond Williams | 15 | Son | 30 | California |
| 31 | Robert Williams | 12 | Son | — | California |
| 32 | Mary Williams | 9 | Daughter | — | California |
| 33 | Marie Williams | 6 | Daughter | — | California |
| 34 | Roland E. Williams | 2 | Son | — | California |
| 35 | Blanche Cady | 65 | Head | — | Michigan |
| 36 | Mae Habentrait | 49 | Head | — | South Dakota |
| 37 | William Habentrait | 25 | Son | 812 | Missouri |
| 38 | Emma P. Hillsman | 87 | Head | — | Michigan |
| 39 | Cecile Frances Roberts | 52 | Nurse | Practical Nurse | Indiana |
| 40 | John Mugridge | 70 | Head | — | New Hampshire |
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)