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Lucy Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Lucy Davis across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Davis |
| Given Name | Lucy A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1929 |
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 Lucy | Age | Birth yr |
|---|---|---|---|---|
| Marion Davis | Daughter | — | 6 | ~1934 |
| Lucy Davis | Daughter | — | 11 | ~1929 |
| Mario Davis | Head | — | 53 | ~1887 |
| Gilbert Davis | Son | — | 2 | ~1938 |
| Victor Davis | Son | — | 1 | ~1939 |
| Charles Davis | Son | — | 4 | ~1936 |
| Dorothy Davis | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Los Angeles, …
Other, age 1
Los Angeles, California · implied b. ~1929 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Lucia |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 11
Los-Angeles-County, California · implied b. ~1929 — 7 household members
| Surname | Davis |
| Given Name | Lucy A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | G 3 |
| 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 Lucy Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lucy Davis
Daughter · 1940 · age 11 · b. ~1929 · California
★ You are viewing this record
Sibling
Gilbert Davis
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victor Davis
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Davis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Davis
Sibling · 1940 · age 6
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-t0627-00403-00374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lura M. Davison | 71 | Head | Bookkeeper | Wisconsin |
| 42 | Richard B. Robinson | 47 | Nephew | — | Illinois |
| 43 | Nettie B. Jones | 64 | Housekeeper | Housekeeper | Missouri |
| 44 | Arthur C. Allyn | 62 | Head | Salesman | Pennsylvania |
| 45 | Lela B. Allyn | 58 | Wife | Manager | Illinois |
| 46 | William N. Lanigan | 74 | Head | — | New York |
| 47 | Mary G. Lanigan | 49 | Wife | — | Ohio |
| 48 | Jeannette Florian | 50 | Head | — | Michigan |
| 49 | Hazel Bunt | 38 | Head | Owner-Proprietor | Michigan |
| 50 | Mildred Finkbeiner | 26 | Head | Saleslady | Illinois |
| 51 | Frank Mallay | 55 | Head | — | Ohio |
| 52 | Earl Mallay | 39 | Brother | — | Ohio |
| 53 | Fred A. Thomas | 39 | Head | Refrigeration Repair Man | Indiana |
| 54 | Jeannette Thomas | 26 | Wife | — | Texas |
| 55 | Ralph Stepp | 43 | Head | Telegraph Operator | Illinois |
| 56 | Estella Stepp | 36 | Wife | — | Tennessee |
| 57 | Helen C. Stepp | 20 | Daughter | Waitress | Oklahoma |
| 58 | James J. Stepp | 18 | Son | Caddy | Oklahoma |
| 59 | David J. Stepp | 16 | Son | — | Idaho |
| 60 | Joseph Hellrung | 76 | Head | — | Germany |
| 61 | Amelia Hellrung | 78 | Wife | — | Iowa |
| 62 | Dorothy Haerot | 45 | Daughter | Painter | Iowa |
| 63 | Lucille M. Haerot | 13 | Granddaughter | — | California |
| 64 | Joan E. Haerot | 11 | Granddaughter | — | California |
| 65 | Mario Davis | 53 | Head | Chemist | Massachusetts |
| 66 | Dorothy Davis | 34 | Wife | — | Canada-English |
| 67 | Lucy A. Davis THIS PERSON | 11 | Daughter | — | California |
| 68 | Marion L. Davis | 6 | Daughter | — | California |
| 69 | Charles M. Davis | 4 | Son | — | California |
| 70 | Gilbert L. Davis | 2 | Son | — | California |
| 71 | Victor H. Davis | 1 | Son | — | California |
| 72 | Frederick J. Rhodes | 65 | Head | — | New Jersey |
| 73 | Cornelia Rhodes | 69 | Wife | — | New York |
| 74 | Ida Carlson | 63 | Head | — | Sweden |
| 75 | Edna N. Jasper | 58 | Head | — | Kansas |
| 76 | Thelma Jasper | 28 | Daughter | Salesclerk | Kansas |
| 77 | James J. Joslin | 27 | Head | Truck Driver | Missouri |
| 78 | Ruth R. Joslin | 30 | Wife | Salesclerk | Kansas |
| 79 | Amy E. Barrett | 62 | Aunt-in-law | — | Kansas |
| 80 | Ephraim W. Jensen | 47 | Head | Refrigeration Repair Man | Iowa |
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)