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Marie Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Marie Williams across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 7-person household.
Age 25
b. ~1915
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Williams |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Secretary |
| Industry | Insurance Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Secretary |
| Township / Ward | Los Angeles |
| Est. Birth Year | ~1915 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marie | Age | Birth yr |
|---|---|---|---|---|
| Marie Williams | Daughter | — | 25 | ~1915 |
| Mary Williams | Daughter | — | 25 | ~1915 |
| Elizabeth Ballard | Daughter | — | 27 | ~1913 |
| Walter Williams | Head | — | 51 | ~1889 |
| Terrel Ballard | Son | — | 5 | ~1935 |
| Brooks Williams | Son | — | 27 | ~1913 |
| Sarah Williams | Spouse | — | 51 | ~1889 |
Census Appearances
1930
Los Angeles, …
Daughter, age 15
Los Angeles, California · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Los-Angeles-County, California
Daughter, age 25
Los-Angeles-County, California · implied b. ~1915 — 7 household members
| Surname | Williams |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Occupation | Secretary |
| Industry | Insurance Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Marie Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marie Williams
Daughter · 1940 · age 25 · b. ~1915 · California
★ You are viewing this record
Sibling
Brooks Williams
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Williams
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Ballard
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Terrel Ballard
Sibling · 1940 · age 5
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
40 people indexed on this census page (nara:1940:m-t0627-00428-00699)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thaddeus Jenkins | 29 | Lodger | Porter | Texas |
| 42 | Harry S. Roberts | 50 | Head | Upholstering | Pennsylvania |
| 43 | Adelia D. Roberts | 39 | Wife | — | Costa Rica |
| 44 | Burton A. Shafer | 69 | Head | Maintenance | Iowa |
| 45 | Hannah L. Shafer | 62 | Wife | — | Iowa |
| 46 | Ray Secrest | 41 | Head | Contractor | Missouri |
| 47 | Lila Secrest | 39 | Wife | Real Estate | Iowa |
| 48 | Jack (Ab) Secrest | 17 | Son | — | Iowa |
| 49 | Patricia Secrest | 7 | Daughter | — | California |
| 50 | Edward Costigan | 32 | Head | Attendant | Wisconsin |
| 51 | Anne Costigan | 28 | Wife | — | Tennessee |
| 52 | Patricia Costigan | 5 | Daughter | — | Washington |
| 53 | Thomas A. Egan | 53 | Head | Real Estate | Missouri |
| 54 | Gertrude Egan | 56 | Wife | — | Illinois |
| 55 | Charles King | 43 | Head | Erecting Engineer | Kansas |
| 56 | Mabel King | 40 | Wife | — | Oklahoma |
| 57 | Paul King | 17 | Son | Carrier | Kansas |
| 58 | Fred Clovie | 23 | Son-in-law | — | Illinois |
| 59 | Ina Lou Kerns | 43 | Head | — | Georgia |
| 60 | Doris Kerns | 15 | Daughter | — | California |
| 61 | Jeanette Kerns | 12 | Daughter | — | California |
| 62 | Dona Pearl Kerns | 10 | Daughter | — | California |
| 63 | Walter S. Williams | 51 | Head | Laborer | Tennessee |
| 64 | Sarah J. Williams | 51 | Wife | — | Texas |
| 65 | Brooks Williams | 27 | Son | Mechanic | Oklahoma |
| 66 | Mary Williams | 25 | Daughter | Receptionist | Oklahoma |
| 67 | Marie Williams THIS PERSON | 25 | Daughter | Secretary | Oklahoma |
| 68 | Elizabeth Ballard | 27 | Daughter | Secretary | Oklahoma |
| 69 | Terrel Ballard | 5 | Son | — | California |
| 70 | Francis M. Gosline | 55 | Head | Cement Finisher | Missouri |
| 71 | Blanche C. Gosline | 56 | Wife | — | Idaho |
| 72 | John Kenneth Gosline | 19 | Son | Sheet Metal Finisher | California |
| 73 | Wheeler Shaffer | 49 | Head | Mail Carrier | Kentucky |
| 74 | Blanche Shaffer | 37 | Wife | — | Missouri |
| 75 | Billie Mae Shaffer | 16 | Daughter | — | Arizona |
| 76 | Harry Willette | 37 | Head | Machinist | Wisconsin |
| 77 | Mollie Willette | 28 | Wife | — | Oregon |
| 78 | Eddy Willette | 9 | Son | — | California |
| 79 | Donna Willette | 8 | Daughter | — | California |
| 80 | Harvey Willette | 4 | Son | — | California |
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)