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Mary Martinez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · El-Paso-County, Colorado
Our Model Tree links this Mary Martinez across the 1930 and 1940 US Censuses in El-Paso-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 12-person household.
Age 12
b. ~1928
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | El-Paso-County, Colorado |
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Colorado Springs |
| 1935 Residence (County) | El Paso |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Colorado Springs |
| Est. Birth Year | ~1928 |
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 |
|---|---|---|---|---|
| Max Martinez | Son | — | 9 | ~1931 |
| Rose Martinez | Daughter | — | 7 | ~1933 |
| Jacob Martinez | Son | — | 5 | ~1935 |
| Bernice Martinez | Daughter | — | 6 | ~1934 |
| James Martinez | Son | — | 3 | ~1937 |
| Fred Martinez | Head | — | 36 | ~1904 |
| Margaret Martinez | Daughter | — | 4 | ~1936 |
| Mary Martinez | Daughter | — | 12 | ~1928 |
| Mollie Martinez | Spouse | — | 35 | ~1905 |
| Catherine Martinez | Daughter | — | 1 | ~1939 |
| Fred Martinez | Son | — | 5 | ~1935 |
| Stella Martinez | Daughter | — | 11 | ~1929 |
Census Appearances
1930
El Paso, …
Daughter, age 2
El Paso, Colorado · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Mexican |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | New Mexico |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
El-Paso-County, Colorado
Daughter, age 12
El-Paso-County, Colorado · implied b. ~1928 — 12 household members
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Colorado Springs |
| 1935 Residence (County) | El Paso |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 12 · b. ~1928 · Colorado
★ You are viewing this record
Sibling
Rose Martinez
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Max Martinez
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Martinez
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stella Martinez
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacob Martinez
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Martinez
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Martinez
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Martinez
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Martinez
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 — El-Paso-County, Colorado
Open full size
1940 US Federal Census — El-Paso-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00461-00806)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ernest Galvan | 3 | Son | — | Colorado |
| 2 | Dionicio Dinares | 24 | Head | Laborer | Colorado |
| 3 | Rose Dinares | 26 | Wife | Laborer | Colorado |
| 4 | Paul Dinares | 6 | Son | — | Colorado |
| 5 | Edward Dinares | 2 | Son | — | Colorado |
| 6 | Le Roy Smith | 22 | Head | Laborer | Colorado |
| 7 | Leona Smith | 20 | Wife | — | Missouri |
| 8 | Dennis Smith | 0 | Son | — | Colorado |
| 9 | Anna Boschart | 36 | Mother-in-law | Waitress | Missouri |
| 10 | John Duran | 48 | Head | Laborer | New Mexico |
| 11 | Isabelle Duran | 21 | Wife | — | Colorado |
| 12 | Fred Duran | 24 | Son | — | New Mexico |
| 13 | Louis Duran | 3 | Son | — | Colorado |
| 14 | Charlotte Duran | 2 | Daughter | — | Colorado |
| 15 | Daniel Duran | 1 | Son | — | Colorado |
| 16 | Infant Duran | 0 | Son | — | Colorado |
| 17 | Martina Martina | 67 | Mother | — | Colorado |
| 18 | Clifford Johnson | 42 | Head | Laborer | Kansas |
| 19 | Mary Johnson | 38 | Wife | — | Virginia |
| 20 | Clifford Jr Johnson | 7 | Son | — | Colorado |
| 21 | Mary L Johnson | 5 | Daughter | — | Colorado |
| 22 | Charles E Johnson | 3 | Son | — | Colorado |
| 23 | Step-Son Thomas | 16 | Step-son | — | Ohio |
| 24 | Rose Marie Thomas | 13 | Daughter | — | Colorado |
| 25 | Rudy A Haus | 47 | Head | Dental Mechanic | Austria |
| 26 | Mary A Haus | 42 | Wife | House Work | Austria |
| 27 | Lee Davis | 29 | Head | Salesman | Arkansas |
| 28 | Bernice Davis | 35 | Wife | Book Keeper Sales Lady | Kentucky |
| 29 | Fred Martinez | 36 | Head | Laborer | New Mexico |
| 30 | Mollie Martinez | 35 | Wife | — | New Mexico |
| 31 | Mary Martinez THIS PERSON | 12 | Daughter | — | Colorado |
| 32 | Stella Martinez | 11 | Daughter | — | Colorado |
| 33 | Max Martinez | 9 | Son | — | Colorado |
| 34 | Rose Mary Martinez | 7 | Daughter | — | Colorado |
| 35 | Bernice Martinez | 6 | Daughter | — | Colorado |
| 36 | Fred Thomas Martinez | 5 | Son | — | Colorado |
| 37 | Jacob Martinez | 5 | Son | — | Colorado |
| 38 | Margaret Mary Martinez | 4 | Daughter | — | Colorado |
| 39 | James Martinez | 3 | Son | — | Colorado |
| 40 | Catherine E Martinez | 1 | Daughter | — | Colorado |
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)