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Bertha Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Bertha Davis across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Female
Spouse
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Davis |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Los Angeles |
| Est. Birth Year | ~1889 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Herman Davis | Head | — | 51 | ~1889 |
| Ralph Davis | Son | — | 17 | ~1923 |
| Bertha Davis | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Los Angeles, …
Spouse, age 31
Los Angeles, California · implied b. ~1889 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Bertha B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Washington |
| Father's Birthplace | Missouri |
| Mother's Birthplace | West Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Los Angeles, …
Spouse, age 41
Los Angeles, California · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Bertha A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 23 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Illinois |
| Occupation | Fireman |
| Industry | City Fire Dept |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Los-Angeles-County, California
Spouse, age 51
Los-Angeles-County, California · implied b. ~1889 — 3 household members
| Surname | Davis |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Bertha Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Bertha Davis
Spouse · 1940 · age 51 · b. ~1889 · 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-t0627-00427-00443)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul O. Price | 23 | Head | Metal Fabricator | California |
| 42 | Frances A. Price | 20 | Wife | — | California |
| 43 | Michael O. Price | 0 | Son | — | California |
| 44 | Harry A. Lenhart | 60 | Head | Accountant | Minnesota |
| 45 | Mary V. Lenhart | 58 | Wife | — | Minnesota |
| 46 | Charles Fisher | 52 | Head | Carpenter | New York |
| 47 | Ethel M. Fisher | 52 | Wife | — | Missouri |
| 48 | Elva D. Taber | 29 | Daughter | Hosiery Repair | Missouri |
| 49 | Barbara Taber | 5 | Granddaughter | — | California |
| 50 | Herman Davis | 51 | Head | Fireman | New York |
| 51 | Bertha Davis THIS PERSON | 51 | Wife | — | Washington |
| 52 | Ralph Davis | 17 | Son | — | California |
| 53 | Ward Jennings | 32 | Head | Auto Mechanic | Oregon |
| 54 | Thelma Jennings | 30 | Wife | Shipping Clerk | Oregon |
| 55 | Joseph Roberts | 55 | Head | Janitor | Pennsylvania |
| 56 | Mary Roberts | 51 | Wife | — | Illinois |
| 57 | Johanna Pumps | 73 | Mother-in-law | — | Illinois |
| 58 | Noble Eckles | 51 | Head | Manufacturer | California |
| 59 | Grace A. Eckles | 51 | Wife | Bookkeeper | Iowa |
| 60 | Luther L. Romberger | 40 | Head | Electrician | Kansas |
| 61 | Frances E. Romberger | 34 | Wife | — | California |
| 62 | Ellen L. Romberger | 11 | Daughter | — | California |
| 63 | Duane A. Romberger | 8 | Son | — | California |
| 64 | Gordon L. Romberger | 3 | Son | — | California |
| 65 | John T. Bacarella | 27 | Head | Ham Pickler | Michigan |
| 66 | Josephine M. Bacarella | 22 | Wife | — | Michigan |
| 67 | Rosario P. Bacarella | 6 | Son | — | California |
| 68 | John T. Bacarella | 3 | Son | — | California |
| 69 | Pete Bacarella | 22 | Brother | Salesclerk | Michigan |
| 70 | Peter Rossel | 60 | Head | Janitor | Hungary |
| 71 | Anna Rossel | 60 | Wife | — | Hungary |
| 72 | Richard Mahoney | 30 | Head | Elevator Operator | Kentucky |
| 73 | Anna Mahoney | 30 | Wife | — | California |
| 74 | James A. Mahoney | 1 | Son | — | California |
| 75 | Walter B. Nelson | 37 | Head | Assembler | Massachusetts |
| 76 | Sylvia M. Nelson | 37 | Wife | — | Wisconsin |
| 77 | Gary F. Nelson | 4 | Son | — | California |
| 78 | Wayne L. Nelson | 3 | Son | — | California |
| 79 | Paul Bitterlich | 40 | Lodger | Chef | Germany |
| 80 | Raymond Williams | 32 | Head | Checker | Illinois |
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)