AS
Amelia Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this Amelia Smith across the 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1904), then head of a 8-person household.
Age 36
b. ~1904
Female
Daughter
Born: Mexico
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Smith |
| Given Name | Amelia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Mexico |
| 1935 Residence (City) | El Cajon |
| 1935 Residence (County) | San Diego |
| Naturalization Status | Alien |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
| Township / Ward | El Cajon |
| Est. Birth Year | ~1904 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Amelia | Age | Birth yr |
|---|---|---|---|---|
| Asuncion Murillo | Spouse | — | 55 | ~1885 |
| Amelia Smith | Daughter | — | 36 | ~1904 |
| Felix Murillo | Head | — | 56 | ~1884 |
| Ruby Smith | Daughter | — | 16 | ~1924 |
| Oscar Smith | Son | — | 12 | ~1928 |
| Elmira Smith | Daughter | — | 14 | ~1926 |
| Onorio Smith | Other | — | 40 | ~1900 |
| Alfred Smith | Son | — | 5 | ~1935 |
Census Appearances
1930
San Diego, …
Spouse, age 26
San Diego, California · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Amalia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Mexican |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Mexico |
| Naturalization Status | Alien |
| Year of Immigration | 1911 |
| Age at First Marriage | 20 |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Can Read/Write | Yes |
| Mother Tongue | Spanish |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
1940
San-Diego-County, California
Daughter, age 36
San-Diego-County, California · implied b. ~1904 — 8 household members
| Surname | Smith |
| Given Name | Amelia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Mexico |
| 1935 Residence (City) | El Cajon |
| 1935 Residence (County) | San Diego |
| Naturalization Status | Alien |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
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 Amelia Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Amelia Smith
Daughter · 1940 · age 36 · b. ~1904 · California
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Sibling
Elmira Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oscar Smith
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Smith
Sibling · 1940 · age 5
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 — San-Diego-County, California
Open full size
1940 US Federal Census — San-Diego-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00295-00334)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elmer B Waller | 6 | Son | — | California |
| 42 | Petro Ruiz | 77 | Head | Caretaker | Mexico |
| 43 | Petrada Ruiz | 55 | Wife | — | Mexico |
| 44 | Raul Nunez | 18 | Son | — | Mexico |
| 45 | Isabel Nunez | 12 | Piece | — | California |
| 46 | Carlos Nunez | 21 | Son | Odd Jobs | Mexico |
| 47 | George Cano | 33 | Head | Helper | California |
| 48 | Eva Cano | 29 | Wife | — | Mexico |
| 49 | Cecilia Cano | 10 | Daughter | — | California |
| 50 | Rosalana Cano | 9 | Daughter | — | California |
| 51 | George Cano | 5 | Son | — | California |
| 52 | Peter Ruiz | 31 | Head | Laborer | California |
| 53 | Lupe Ruiz | 27 | Wife | — | California |
| 54 | Walter Ruiz | 7 | Son | — | California |
| 55 | Barbara Ruiz | 5 | Daughter | — | California |
| 56 | Frank Ruiz | 29 | Brother | Laborer | California |
| 57 | Felix Murillo | 56 | Head | Rancher | Mexico |
| 58 | Asuncion Murillo | 55 | Wife | — | Mexico |
| 59 | Onorio Smith | 40 | Son-in-law | Laborer | Mexico |
| 60 | Amelia Smith THIS PERSON | 36 | Daughter | — | Mexico |
| 61 | Ruby Smith | 16 | Daughter | — | California |
| 62 | Elmira Smith | 14 | Daughter | — | California |
| 63 | Oscar Smith | 12 | Son | — | California |
| 64 | Alfred Smith | 5 | Son | — | California |
| 65 | Charles A Frisbey | 54 | Head | Rancher | Indiana |
| 66 | Rose E Frisbey | 60 | Wife | — | Indiana |
| 67 | Donald Frisbey | 12 | Grandson | — | California |
| 68 | Burns Nelson | 47 | Head | Rancher | Colorado |
| 69 | Marie Nelson | 37 | Wife | — | Colorado |
| 70 | Horace Wilson | 25 | Head | Rancher | Texas |
| 71 | Alline Wilson | 21 | Wife | — | Texas |
| 72 | Leone Wilson | 4 | Son | — | Arizona |
| 73 | Harold Wilson | 1 | Son | — | Arizona |
| 74 | Grover Martin | 29 | Head | Rancher | Texas |
| 75 | Margaret Martin | 26 | Wife | — | Texas |
| 76 | Grover Jr Martin | 6 | Son | — | Texas |
| 77 | David Martin | 3 | Son | — | California |
| 78 | Margaret J Martin | 0 | Daughter | — | California |
| 79 | Pauline Herman | 64 | Head | — | Missouri |
| 80 | Rudolph Herman | 45 | Son | — | Missouri |
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)