FT
Frances Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Frances Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 4-person household.
Age 56
b. ~1884
Female
Head
Born: California
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Thompson |
| Given Name | Frances |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | California |
| 1935 Residence (City) | Santa Monica City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No H-1 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Santa Monica City |
| Est. Birth Year | ~1884 |
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 Frances | Age | Birth yr |
|---|---|---|---|---|
| Carroll Mary | Other | — | 65 | ~1875 |
| Marguerite Thompson | Daughter | — | 30 | ~1910 |
| Portia Ryde | Spouse | — | 35 | ~1905 |
| Frances Thompson | Head | — | 56 | ~1884 |
Census Appearances
1910
Los Angeles, …
Spouse, age 26
Los Angeles, California · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frances G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | California |
| Years Married | 4 |
| Children Born | 2 |
| Children Living | 2 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Los Angeles, …
Spouse, age 36
Los Angeles, California · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frances E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Other, age 46
Los Angeles, California · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Frances E. |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | 12,000 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Head, age 56
Los-Angeles-County, California · implied b. ~1884 — 4 household members
| Surname | Thompson |
| Given Name | Frances |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | California |
| 1935 Residence (City) | Santa Monica City |
| 1935 Residence (County) | Los Angeles |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No H-1 |
| 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 Frances Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Frances Thompson
Head · 1940 · age 56 · b. ~1884 · California
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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-t0627-00257-00697)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clara Burton | 69 | Head | — | Massachusetts |
| 42 | Caroline Krause | 60 | Head | — | Michigan |
| 43 | Mary Louise Krause | 21 | Daughter | Secretary | Illinois |
| 44 | Georgia E. Bundy | 33 | Head | Assist. Buyer | Colorado |
| 45 | Mary Badenhaur | 69 | Mother | — | Virginia |
| 46 | George Bundy | 15 | Son | — | California |
| 47 | Eunice Ponton | 40 | Head | — | Nebraska |
| 48 | Ira Thomas | 15 | Son | Sheet Metal Worker | California |
| 49 | Andrew Thomas | 12 | Son | — | California |
| 50 | Arlene Thomas | 5 | Daughter | — | California |
| 51 | Gilbert V. Warren | 20 | Head | Welder | Montana |
| 52 | John Fleming | 19 | Partner | Welder | Montana |
| 53 | Marshall Vance | 20 | Partner | Welder | Montana |
| 54 | Lulu Miller | 75 | Head | — | England |
| 55 | Christine Johnson | 24 | Head | — | Maryland |
| 56 | Thomas G. Ponton | 54 | Head | Painter & Carpenter | Texas |
| 57 | Frances Thompson THIS PERSON | 56 | Head | — | California |
| 58 | Marguerite B. Thompson | 30 | Daughter | Stenographer | California |
| 59 | Carroll Mary | 65 | Sister-in-law | — | New York |
| 60 | Portia Ryde | 35 | Wife | — | Utah |
| 61 | John E. Ryde | 47 | Head | Salesman | New York |
| 62 | George F. Harding | 70 | Head | Doctor | Utah |
| 63 | Birdie Harding | 68 | Wife | — | Utah |
| 64 | Virginia Artel | 32 | Daughter | Teacher | Utah |
| 65 | Joan Artel | 5 | grand-daughter | — | California |
| 66 | Erik S. Miller | 48 | Head | Jobber | Kansas |
| 67 | Marguerite Miller | 50 | Wife | — | Illinois |
| 68 | Igneta A. Miller | 19 | Daughter | — | California |
| 69 | Robert King | 31 | Head | Teller | Ohio |
| 70 | Phyllis King | 27 | Wife | — | California |
| 71 | Sally Anne King | 3 | Daughter | — | California |
| 72 | Robert G. Jr. King | 0 | Son | — | California |
| 73 | Frank A. Helton | 64 | Head | Supervisor | Tennessee |
| 74 | Bertha Helton | 60 | Wife | — | Tennessee |
| 75 | Sara Blount | 44 | sister-in-law | Teacher | Tennessee |
| 76 | Dorothy Masterson | 34 | Head | Waitress | Kentucky |
| 77 | Nell Harris | 25 | Housekeeper | Housekeeper | Kentucky |
| 78 | Wesley Hanson | 30 | Lodger | Electrician | California |
| 79 | Harvey Marshall | 39 | Lodger | Foreman | Kentucky |
| 80 | Charles Guhnke | 23 | Head | Laborer | 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)