LS
Lucy Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Lucy Smith across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Smith |
| Given Name | Lucy M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1880 |
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 Lucy | Age | Birth yr |
|---|---|---|---|---|
| Kenia Smith | Daughter | — | 26 | ~1914 |
| Kirby Smith | Head | — | 59 | ~1881 |
| Lucy Smith | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Los Angeles, …
Spouse, age 40
Los Angeles, California · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lucy M. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Los Angeles, …
Spouse, age 50
Los Angeles, California · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lucy M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 29 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Los-Angeles-County, California
Spouse, age 60
Los-Angeles-County, California · implied b. ~1880 — 3 household members
| Surname | Smith |
| Given Name | Lucy M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lucy Smith
Spouse · 1940 · age 60 · b. ~1880 · California
★ You are viewing this record
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-t0627-00422-00632)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Muriel Puff | 35 | Wife | — | Florida |
| 42 | Alonette Puff | 12 | Daughter | — | California |
| 43 | Grace Paternoster | 44 | Head | Transcriber | California |
| 44 | Kirby W. Smith | 59 | Head | Stock Clerk | Massachusetts |
| 45 | Lucy M. Smith THIS PERSON | 60 | Wife | — | Iowa |
| 46 | Kenia M. Smith | 26 | Daughter | Typist | California |
| 47 | Mayo J. Barbour | 43 | Head | Maintenance | Kansas |
| 48 | Sara Barbour | 38 | Wife | — | New Jersey |
| 49 | William O. Stone | 20 | Son-in-law | — | California |
| 50 | George L. Wilton | 87 | Head | — | England |
| 51 | Sarah A. Wilton | 76 | Wife | Proprietor | Canada Eng |
| 52 | Wenonah H. Wilton | 39 | Daughter | Office Clerk | Texas |
| 53 | Katherine Williams | 53 | Head | — | Germany |
| 54 | Ottilie A. Brandt | 60 | Head | School Nurse | Germany |
| 55 | Marie L. Brandt | 56 | Partner | Teacher | Pennsylvania |
| 56 | Vance Markle | 28 | Lodger | Pin Setter | Kansas |
| 57 | Lucile Ab Markle | 22 | Wife | — | California |
| 58 | Millard Markle | 1 | Son | — | California |
| 59 | Dora A. Stokes | 79 | Head | Practical Nurse | California |
| 60 | Mary H. Ashmead | 77 | Partner | — | Ohio |
| 61 | Floyd H. Shaffer | 44 | Lodger | Salesman | Iowa |
| 62 | Robert A. Brown | 46 | Head | Proprietor | Connecticut |
| 63 | Mabel Brown | 43 | Wife | — | Pennsylvania |
| 64 | Donald Brown | 23 | Son | Radio Repair | California |
| 65 | Gerald Brown | 20 | Son | — | California |
| 66 | Audrey Brown | 13 | Daughter | — | California |
| 67 | Isaac Webb | 48 | Head | Shop Foreman | Ohio |
| 68 | Sonia Webb | 62 | Wife | — | West Virginia |
| 69 | Harris Bonner | 46 | Head | Partner | Illinois |
| 70 | Ruth Bonner | 40 | Wife | Partner | Illinois |
| 71 | Anthony Ferrara | 63 | Head | Proprietor | Italy |
| 72 | Mary Ferrara | 53 | Wife | — | Italy |
| 73 | Jasper Ferrara | 35 | Son | Machinist | Louisiana |
| 74 | Vincent Ferrara | 32 | Son | Inspector | Louisiana |
| 75 | Petrolina Ferrara | 29 | Daughter | Cutter | Louisiana |
| 76 | Nickolie Ferrara | 27 | Son | — | Louisiana |
| 77 | Dr. Marie Pence | 59 | Head | Practitioner | Indiana |
| 78 | Fred W. Kelley | 62 | Head | Partner | Iowa |
| 79 | Nelle Kelley | 62 | Wife | — | Iowa |
| 80 | John Maury | 34 | Head | Partner | Ohio |
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)