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Maria Hernandez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Santa-Clara-County, California
Our Model Tree links this Maria Hernandez across the 1930 and 1940 US Censuses in Santa-Clara-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Santa-Clara-County, California |
| Surname | Hernandez |
| Given Name | Maria |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Diego |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Alviso |
| Est. Birth Year | ~1926 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Maria | Age | Birth yr |
|---|---|---|---|---|
| Antonia Hernandez | Son | — | 9 | ~1931 |
| Luciano Hernandez | Son | — | 12 | ~1928 |
| Rufujia Hernandez | Son | — | 11 | ~1929 |
| Henry Hernandez | Son | — | 6 | ~1934 |
| Maria Hernandez | Daughter | — | 14 | ~1926 |
| Guadalupe Hernandez | Daughter | — | 16 | ~1924 |
| Agroria Hernandez | Daughter | — | 14 | ~1926 |
| Francisco Hernandez | Head | — | 46 | ~1894 |
| Raymond Hernandez | Son | — | 10 | ~1930 |
| Frank Hernandez | Son | — | 18 | ~1922 |
| Encarnacion Hernandez | Son | — | 8 | ~1932 |
| Ophelia Hernandez | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Alameda, California
Daughter, age 4
Alameda, California · implied b. ~1926 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hernandez |
| Given Name | Maria Jr. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Mexican |
| Age | 4 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Can Read/Write | No |
| Mother Tongue | Spanish |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Santa-Clara-County, California
Daughter, age 14
Santa-Clara-County, California · implied b. ~1926 — 12 household members
| Surname | Hernandez |
| Given Name | Maria |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Diego |
| 1935 Residence (County) | San Diego |
| Highest Grade | No 8 |
| 1935 Residence | California |
| 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 Maria Hernandez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Maria Hernandez
Daughter · 1940 · age 14 · b. ~1926 · California
★ You are viewing this record
Sibling
Agroria Hernandez
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rufujia Hernandez
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Encarnacion Hernandez
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Hernandez
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Antonia Hernandez
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Hernandez
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luciano Hernandez
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Hernandez
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Guadalupe Hernandez
Sibling · 1940 · age 16
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 — Santa-Clara-County, California
Open full size
1940 US Federal Census — Santa-Clara-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00337-00015)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francisco Hernandez | 46 | Head | Laborer | Mexico |
| 2 | Ophelia | Ofelia Hernandez | 36 | Wife | — | Mexico |
| 3 | Frank Hernandez | 18 | Son | Laborer | California |
| 4 | Agroria | Agroria Hernandez | 14 | Daughter | — | California |
| 5 | Guadalupe Hernandez | 16 | Daughter | — | California |
| 6 | Maria Hernandez THIS PERSON | 14 | Daughter | — | California |
| 7 | Luciano Hernandez | 12 | Son | — | California |
| 8 | Rufujia | Rufugia Hernandez | 11 | Son | — | California |
| 9 | Raymond Hernandez | 10 | Son | — | California |
| 10 | Antonia Hernandez | 9 | Son | — | California |
| 11 | Encarnacion Hernandez | 8 | Son | — | California |
| 12 | Henry Hernandez | 6 | Son | — | California |
| 14 | William Steely | 50 | Head | Laborer | Kentucky |
| 15 | Mary Steely | 44 | Wife | — | Kentucky |
| 16 | James Steely | 17 | Son | Laborer | Kentucky |
| 17 | Ben Steely | 23 | Son | Laborer | Kentucky |
| 18 | Juanita Steely | 17 | Daughter-in-law | — | Oklahoma |
| 19 | Ruby Steely | 15 | Daughter | — | Oklahoma |
| 20 | Raymond Steely | 12 | Son | — | Oklahoma |
| 21 | Floyd Steely | 8 | Son | — | Oklahoma |
| 22 | Donald Steely | 3 | Grandson | — | Oklahoma |
| 23 | Fred Steely | 0 | Grandson | — | California |
| 24 | Gustave Tenny | 53 | Head | Painter | New York |
| 25 | Raymond Fugel | 30 | Head | Labor | California |
| 26 | Eva Fugel | 23 | Wife | — | California |
| 27 | Eva Fugel | 2 | Daughter | — | California |
| 28 | Natali Davis | 38 | Head | — | California |
| 29 | Jessie Davis | 20 | Daughter | Housekeeper | California |
| 30 | Charles Davis | 18 | Son | Seaman | California |
| 31 | Mae Bertrand | 53 | Head | — | Arkansas |
| 32 | George H. Wade | 62 | Head | — | California |
| 33 | Elmer P. Hall | 52 | Head | Caretaker | California |
| 34 | Ying Yee Cheer | 68 | Head | Watchman | California |
| 35 | Jimmy Lung Choy | 76 | Head | — | California |
| 36 | Sarah Choy | 38 | Wife | — | California |
| 37 | Fred Baumbach | 63 | Head | Proprietor | Germany |
| 38 | Estelle Baumbach | 31 | Wife | — | Florida |
| 39 | Hiram Meyers | 22 | Lodger | Bartender | California |
| 40 | Elmira Buttery | 75 | Head | Janitor | California |
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)