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Mary Martinez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bexar-County, Texas
Our Model Tree links this Mary Martinez across the 1930 and 1940 US Censuses in Bexar-County, Texas (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 12-person household.
Age 10
b. ~1930
Female
Daughter
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bexar-County, Texas |
| Surname | Martinez |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | San Antonio City |
| 1935 Residence (County) | Bexar |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | San Antonio City |
| Est. Birth Year | ~1930 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Teofolo Martinez | Head | — | 59 | ~1881 |
| Trinidad Martinez | Daughter | — | 21 | ~1919 |
| Teofolo Martinez | Son | — | 15 | ~1925 |
| Eloisa Martinez | Daughter | — | 18 | ~1922 |
| Mary Martinez | Daughter | — | 10 | ~1930 |
| Abundio Martinez | Son | — | 27 | ~1913 |
| Merced Silva | Daughter | — | 32 | ~1908 |
| Carlos Silva | Other | — | 34 | ~1906 |
| Ernestine Martinez | Daughter | — | 13 | ~1927 |
| Juanita Martinez | Daughter | — | 30 | ~1910 |
| Luisa Martinez | Spouse | — | 51 | ~1889 |
| Otila Martinez | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Bexar, Texas
Daughter, age 1
Bexar, Texas · implied b. ~1929 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Mexican |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Veteran | No |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Bexar-County, Texas
Daughter, age 10
Bexar-County, Texas · implied b. ~1930 — 12 household members
| Surname | Martinez |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | San Antonio City |
| 1935 Residence (County) | Bexar |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Mary Martinez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Martinez
Daughter · 1940 · age 10 · b. ~1930 · Texas
★ You are viewing this record
Sibling
Abundio Martinez
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Martinez
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernestine Martinez
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Merced Silva
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Teofolo Martinez
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Trinidad Martinez
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eloisa Martinez
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Otila Martinez
Sibling · 1940 · age 10
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 — Bexar-County, Texas
Open full size
1940 US Federal Census — Bexar-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04202-00115)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leonardo Gonzales | 2 | Son | — | Texas |
| 2 | Virginia Gonzales | 3 | Daughter | — | Texas |
| 3 | Juan E Garza | 32 | Head | Laborer | Texas |
| 4 | Isabel Garza | 24 | Wife | — | Texas |
| 5 | Henrietta Garza | 2 | Daughter | — | Texas |
| 6 | Margarita Garza | 1 | Daughter | — | Texas |
| 7 | Esther Garza | 0 | Daughter | — | Texas |
| 8 | Dolores Medina | 33 | Head | Maid | Mexico |
| 9 | Delia Medina | 14 | Daughter | — | Texas |
| 10 | Margarita Medina | 8 | Daughter | — | Texas |
| 11 | Dan Medina | 7 | Son | — | Texas |
| 12 | Elizabeth Medina | 4 | Daughter | — | Texas |
| 13 | Felix Flores | 48 | Brother | Musician | Mexico |
| 14 | Lucita Flores | 51 | Sister-in-law | — | Mexico |
| 15 | Teofolo Martinez | 59 | Head | Yardman | Mexico |
| 16 | Luisa Martinez | 51 | Wife | — | Mexico |
| 17 | Juanita Martinez | 30 | Daughter | Maid | Texas |
| 18 | Abundio Martinez | 27 | Son | Yardman | Texas |
| 19 | Trinidad Martinez | 21 | Daughter | Maid | Texas |
| 20 | Eloisa Martinez | 18 | Daughter | Maid | Texas |
| 21 | Teofolo Jr Martinez | 15 | Son | — | Texas |
| 22 | Ernestine Martinez | 13 | Daughter | — | Texas |
| 23 | Mary L Martinez THIS PERSON | 10 | Daughter | — | Texas |
| 24 | Otila Martinez | 10 | Daughter | — | Texas |
| 25 | Carlos Silva | 34 | Son-in-law | Auto Painter | Texas |
| 26 | Merced Silva | 32 | Daughter | — | Texas |
| 27 | Ramon Cardenas | 58 | Head | Carpenter | Mexico |
| 28 | Isabel Cardenas | 51 | Wife | — | Mexico |
| 29 | Edward Cardenas | 35 | Son | Carpenter | Mexico |
| 30 | Esperanza Cardenas | 37 | Daughter | Sheller | Mexico |
| 31 | Eloisa Cardenas | 31 | Daughter | Sheller | Mexico |
| 32 | Tomasa Cardenas | 80 | Mother | — | Mexico |
| 33 | Hortencia Saldana | 60 | Head | — | Mexico |
| 34 | Juan Saldana | 33 | Son | Battery Maker | Mexico |
| 35 | — | None | — | — | Black |
| 36 | Edward Olivares | 36 | Head | Porter & Janitor | Mexico |
| 37 | Justina Olivares | 22 | Wife | — | Texas |
| 38 | Maria Olivares | 2 | Daughter | — | Texas |
| 39 | Marina Olivares | 1 | Daughter | — | Texas |
| 40 | Loreta Garza | 57 | Sister-in-law | Maid | Mexico |
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)