OS
Olive Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Olive Smith across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Smith |
| Given Name | Olive |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Maid |
| Industry | apt. hotel |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Maid |
| Township / Ward | Los Angeles |
| Est. Birth Year | ~1910 |
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 Olive | Age | Birth yr |
|---|---|---|---|---|
| Olive Smith | Daughter | — | 30 | ~1910 |
| Thelma Smith | Daughter | — | 29 | ~1911 |
| Hora Smith | Head | — | 57 | ~1883 |
| Christine Smith | Daughter | — | 35 | ~1905 |
Census Appearances
1920
Los Angeles, …
Daughter, age 10
Los Angeles, California · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Olethea |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Daughter, age 20
Los Angeles, California · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Olyhia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Maid |
| Industry | Apartment |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Daughter, age 30
Los-Angeles-County, California · implied b. ~1910 — 4 household members
| Surname | Smith |
| Given Name | Olive |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Occupation | Maid |
| Industry | apt. hotel |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Olive Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Smith (~0.92 confidence) and father James Smith (~0.92 confidence) and mother Fannie Smith (~0.92 confidence) and mother Francis Smith (~0.92 confidence) and mother Hora Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Smith
b. ~1870
Source father
● Household
· direct · ~0.92
Father
James Smith
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Fannie Smith
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Francis Smith
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Hora Smith
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Olive Smith
Daughter · 1940 · age 30 · b. ~1910 · California
★ You are viewing this record
Sibling
Thelma Smith
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christine Smith
Sibling · 1940 · age 35
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-t0627-00414-00790)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fred M. Sayles | 27 | Head | Valet | Oklahoma |
| 42 | Rose M. Sayles | 26 | Wife | — | Texas |
| 43 | Amabelle Campbell | 46 | Head | Clerk | Texas |
| 44 | Josephine Campbell | 20 | Daughter | — | Oregon |
| 45 | Amabelle Campbell | 14 | Daughter | — | Oregon |
| 46 | Ole W. Sanders | 50 | Head | — | Texas |
| 47 | Mary J. Sanders | 50 | Wife | — | Texas |
| 48 | Vernell Thompson | 24 | Lodger | Porter | Texas |
| 49 | Cornelius Marshall | 47 | Head | Barber | Georgia |
| 50 | Hattie Marshall | 39 | Wife | — | Georgia |
| 51 | Woodrow Marshall | 23 | Son | Laborer | Georgia |
| 52 | Ruth Marshall | 22 | Daughter | New Worker | Georgia |
| 53 | Zodell Marshall | 21 | Daughter | Nurse | Georgia |
| 54 | Cornelius Jr. Marshall | 18 | Son | Barber | Georgia |
| 55 | Annette Marshall | 17 | Daughter | — | Georgia |
| 56 | James Anderson | 47 | Head | Laborer | Alabama |
| 57 | Willie Anderson | 46 | Wife | — | Alabama |
| 58 | Hora Smith | 57 | Head | — | West Indies |
| 59 | Christine Smith | 35 | Daughter | Maid | West Indies |
| 60 | Olive Smith THIS PERSON | 30 | Daughter | Maid | California |
| 61 | Thelma Smith | 29 | Daughter | Maid | California |
| 62 | Chester Morris | 44 | Head | Porter | Texas |
| 63 | Emma Morris | 36 | Wife | — | Mississippi |
| 64 | Chester Jr. Morris | 2 | Son | — | Mississippi |
| 65 | Leonard Pelony | 68 | Head | — | Nebraska |
| 66 | Lena Pelony | 63 | Wife | — | Germany |
| 67 | Arthur Lumpkin | 27 | Head | Chauffeur | Texas |
| 68 | Letty Lumpkin | 25 | Wife | Maid | Texas |
| 69 | Charley Harding | 37 | Head | Laborer | Oklahoma |
| 70 | Marie Harding | 38 | Wife | — | Oklahoma |
| 71 | Esther Harding | 12 | Daughter | — | Oklahoma |
| 72 | Harry Harding | 9 | Son | — | California |
| 73 | Beverly Harding | 4 | Daughter | — | California |
| 74 | Jeannette James | 47 | Head | Maid | Louisiana |
| 75 | June James | 14 | Daughter | — | California |
| 76 | Sam Daniels | 48 | Lodger | Laborer | Alabama |
| 77 | Thomas Wills | 28 | Lodger | Porter | California |
| 78 | John Hambright | 40 | Head | Janitor | Virginia |
| 79 | Mary E. Hambright | 32 | Wife | — | Virginia |
| 80 | Dennis Hambright | 12 | Son | — | Texas |
Pedigree Summary
Olive + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)