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Barbara Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Barbara Williams across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Williams |
| Given Name | Barbara A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Barbara | Age | Birth yr |
|---|---|---|---|---|
| Genevieve Williams | Daughter | — | 13 | ~1927 |
| Robert Williams | Son | — | 19 | ~1921 |
| Barbara Williams | Daughter | — | 12 | ~1928 |
| Ruth Williams | Spouse | — | 40 | ~1900 |
| Elizabeth Williams | Daughter | — | 11 | ~1929 |
| Arthur Williams | Head | — | 45 | ~1895 |
| Eleynor Williams | Daughter | — | 14 | ~1926 |
| Grace Williams | Daughter | — | 17 | ~1923 |
| Walter Williams | Son | — | 22 | ~1918 |
Census Appearances
1930
San Francisco, …
Daughter, age 2
San Francisco, California · implied b. ~1928 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Irish Free State |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Daughter, age 12
San-Francisco-County, California · implied b. ~1928 — 9 household members
| Surname | Williams |
| Given Name | Barbara A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco City |
| 1935 Residence (County) | San Francisco |
| Highest Grade | No 7 |
| 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 Barbara Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Barbara Williams
Daughter · 1940 · age 12 · b. ~1928 · California
★ You are viewing this record
Sibling
Elizabeth Williams
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Williams
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Williams
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Williams
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Williams
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleynor Williams
Sibling · 1940 · age 14
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-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00307-00155)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gladys C. Randolph | 38 | Wife | Stenographer | South Dakota |
| 2 | Howard J. Antone | 22 | Head | Machinist | California |
| 3 | Althea Antone | 21 | Wife | — | California |
| 4 | Robert M. Barkwill | 34 | Head | Photographer | Washington |
| 5 | Mary J. Barkwill | 30 | Wife | Bookkeeper | Germany |
| 6 | George J. Lacoste | 44 | Head | Attorney | California |
| 7 | Claire M. Lacoste | 38 | Wife | English Teacher | California |
| 8 | Lewis D. Tate | 39 | Head | Salesman | Illinois |
| 9 | Blanche A. Tate | 37 | Wife | — | Idaho |
| 10 | Richard L. Tate | 16 | Son | — | California |
| 11 | William E. Dougherty | 34 | Head | Owner And Manager | Ohio |
| 12 | Mildred E. Dougherty | 32 | Wife | Operator | New York |
| 13 | Elliott B. Benoist | 35 | Head | Painter | Missouri |
| 14 | Doris Benoist | 29 | Wife | Waitress Sales Clerk | Illinois |
| 15 | Daniel A. Hennessy | 49 | Head | Manager | California |
| 16 | Anna G. Hennessy | 44 | Wife | — | California |
| 17 | Arthur F. Williams | 45 | Head | Owner And Manager | Illinois |
| 18 | Ruth Williams | 40 | Wife | — | New York |
| 19 | Walter J. Williams | 22 | Son | Laborer | California |
| 20 | Robert E. Williams | 19 | Son | — | California |
| 21 | Grace L. Williams | 17 | Daughter | — | California |
| 22 | Eleynor F. Williams | 14 | Daughter | — | California |
| 23 | Genevieve M. Williams | 13 | Daughter | — | California |
| 24 | Barbara A. Williams THIS PERSON | 12 | Daughter | — | California |
| 25 | Elizabeth Williams | 11 | Daughter | — | California |
| 26 | Doris H. Gamble | 42 | Head | Dental Assistant | California |
| 27 | John V. Jr. Hettich | 34 | Head | Insurance Clerical | California |
| 28 | Mabel D. Hettich | 33 | Wife | Elementary Teacher | California |
| 29 | Gail F. Hettich | 5 | Daughter | — | California |
| 30 | Helen M. Butcher | 19 | Housekeeper | Housekeeper | Nebraska |
| 31 | Lincoln P. Whitcomb | 22 | Head | Picture Framer | California |
| 32 | Martha L. Whitcomb | 19 | Wife | — | California |
| 33 | Thomas J. Lorigan | 59 | Head | Janitor | Eire |
| 34 | James S. Lorigan | 18 | Son | — | California |
| 35 | Lettia I. Wolfe | 42 | Head | Teacher | Kansas |
| 36 | William E. Herrick | 68 | Head | Retired | Hawaii |
| 37 | Raymond B. Hughes | 26 | Head | Presser | Oregon |
| 38 | Harriette L. Hughes | 22 | Wife | — | Kansas |
| 39 | Edward D. Hughes | 2 | Son | — | California |
| 40 | Don A. Sosa | 30 | Head | Waiter | Rhode Island |
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)