RT
Rose Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Rose Thomas across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 7-person household.
Age 47
b. ~1893
Female
Spouse
Born: Switzerland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Thomas |
| Given Name | Rose B |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1893 |
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 Rose | Age | Birth yr |
|---|---|---|---|---|
| Gwynedd Thomas | Daughter | — | 15 | ~1925 |
| Rhoda Thomas | Daughter | — | 19 | ~1921 |
| Elbert Thomas | Head | — | 54 | ~1886 |
| Rosalie Thomas | Daughter | — | 11 | ~1929 |
| Owen Thomas | Son | — | 22 | ~1918 |
| Rose Thomas | Spouse | — | 47 | ~1893 |
| Elbert Thomas | Son | — | 7 | ~1933 |
Census Appearances
1930
Los Angeles, …
Spouse, age 36
Los Angeles, California · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Rosa |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Age at First Marriage | 19 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
1940
Los-Angeles-County, California
Spouse, age 47
Los-Angeles-County, California · implied b. ~1893 — 7 household members
| Surname | Thomas |
| Given Name | Rose B |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
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 Rose Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Rose Thomas
Spouse · 1940 · age 47 · b. ~1893 · 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
39 people indexed on this census page (nara:1940:m-t0627-00387-00449)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth S Cooke | 73 | Wife | — | England |
| 2 | Elbert A Thomas | 54 | Head | Farm Carpenter | Iowa |
| 3 | Rose B Thomas THIS PERSON | 47 | Wife | — | Switzerland |
| 4 | Owen S Thomas | 22 | Son | Shipping Clerk | Iowa |
| 5 | Rhoda H Thomas | 19 | Daughter | Shipping Clerk | California |
| 6 | Gwynedd M Thomas | 15 | Daughter | — | California |
| 7 | Rosalie E Thomas | 11 | Daughter | — | California |
| 8 | Elbert E Thomas | 7 | Son | — | California |
| 9 | Walter P Dailey | 36 | Head | Shipping Clerk | California |
| 10 | Lucille Dailey | 38 | Wife | — | Utah |
| 11 | Betty J Dailey | 13 | Daughter | — | Utah |
| 12 | Patsy R Dailey | 10 | Daughter | — | Utah |
| 13 | Jo Ann Dailey | 4 | Daughter | — | California |
| 14 | Arlene D Dailey | 1 | Daughter | — | California |
| 15 | David L Ward | 62 | Head | Manager | Kansas |
| 16 | Josephine Ward | 60 | Wife | Assistant | Missouri |
| 17 | Vanette Ward | 29 | Daughter | — | California |
| 18 | Selma Ward | 19 | Daughter | — | California |
| 19 | Norman Cotterall | 30 | Head | Machinist | Utah |
| 20 | Gertrude Cotterall | 30 | Wife | — | California |
| 21 | Felix Marik | 43 | Head | Baker | Czechoslovakia |
| 22 | Jessie Marik | 44 | Wife | — | Czechoslovakia |
| 23 | Felix Jr Marik | 18 | Son | — | California |
| 24 | Helen Marik | 17 | Daughter | — | California |
| 25 | Marie Marik | 14 | Daughter | — | California |
| 26 | Joe E Rowhan | 47 | Head | Engineer | New York |
| 27 | Joe B Rowhan | 17 | Son | — | California |
| 28 | Rhea Meade | 55 | Housekeeper | Housekeeper | Kansas |
| 29 | Laore Legg | 48 | Head | Salesman | Illinois |
| 30 | Cora Legg | 40 | Wife | — | Illinois |
| 31 | Jane Legg | 17 | Daughter | — | Illinois |
| 32 | George Washburn | 38 | Head | Painter | Canada-English |
| 33 | Herbert Barlow | 53 | Head | Salesman | Pennsylvania |
| 34 | Mary E Barlow | 51 | Wife | — | Pennsylvania |
| 35 | Martha Barlow | 28 | Daughter | File Clerk | Canal Zone |
| 36 | Eleanor Barlow | 28 | Daughter | Stenographer | Canal Zone |
| 37 | Eleanor Johnson | 42 | Head | — | Louisiana |
| 38 | Fred Johnson | 19 | Son | — | Georgia |
| 39 | Martha Johnson | 17 | Daughter | — | Florida |
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)