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Mary Martinez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Huerfano-County, Colorado
Our Model Tree links this Mary Martinez across the 1930 and 1940 US Censuses in Huerfano-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 6-person household.
Age 47
b. ~1893
Female
Head
Born: Colorado
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Huerfano-County, Colorado |
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Huerfano County |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | U |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | New Worker |
| Township / Ward | Walsenburg City |
| Est. Birth Year | ~1893 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Charlie Martinez | Son | — | 12 | ~1928 |
| Bilbul Martinez | Son | — | 15 | ~1925 |
| Ernestina Martinez | Daughter | — | 14 | ~1926 |
| Mary Martinez | Head | — | 47 | ~1893 |
| Richard Martinez | Son | — | 9 | ~1931 |
| Daisy Martinez | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Huerfano, Colorado
Spouse, age 35
Huerfano, Colorado · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Mexican |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 18 |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Huerfano-County, Colorado
Head, age 47
Huerfano-County, Colorado · implied b. ~1893 — 6 household members
| Surname | Martinez |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Huerfano County |
| Occupation | New Worker |
| Class of Worker | U |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Colorado |
| 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
Head · 1940 · age 47 · b. ~1893 · Colorado
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Huerfano-County, Colorado
Open full size
1940 US Federal Census — Huerfano-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00464-00589)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clorinda Bustos | 33 | Wife | H | Colorado |
| 2 | Ernest Bustos | 16 | Son | New Worker | Colorado |
| 3 | Enriques Bustos | 14 | Stepson | New Worker | Colorado |
| 4 | Pricilla Bustos | 5 | Daughter | — | Colorado |
| 5 | Donald | 25 | Son | — | Colorado |
| 6 | Irene Bonicelli | 27 | Head | Mechanic | Colorado |
| 7 | Margaret Bonicelli | 26 | Wife | — | Colorado |
| 8 | Loraine Bonicelli | 4 | Daughter | — | Colorado |
| 9 | Nick Maes | 36 | Head | Laborer | Colorado |
| 10 | Dora Maes | 30 | Wife | — | Colorado |
| 11 | Robert Maes | 8 | Son | — | Colorado |
| 12 | Leroy Maes | 1 | Son | — | Colorado |
| 13 | Emilia Trujillo | 51 | Head | — | Colorado |
| 14 | Fred Trujillo | 29 | Son | Laborer | Colorado |
| 15 | Herman Trujillo | 27 | Son | Laborer | Colorado |
| 16 | Anastacio Trujillo | 18 | Son | Laborer | Colorado |
| 17 | Andrea Trujillo | 16 | Daughter | New Worker | Colorado |
| 18 | Ramona Trujillo | 10 | Daughter | — | Colorado |
| 19 | Manfredo Duran | 51 | Head | Laborer | Colorado |
| 20 | Rebecca Duran | 52 | Wife | — | Colorado |
| 21 | Alfred Duran | 20 | Son | Filling Station | Colorado |
| 22 | Lillian Duran | 17 | Daughter | Secretary | Colorado |
| 23 | Claude Atencio | 25 | Head | Scales | Colorado |
| 24 | Zulema Atencio | 23 | Wife | Secretary | Colorado |
| 25 | Mary Martinez THIS PERSON | 47 | Head | New Worker | Colorado |
| 26 | Bilbul Martinez | 15 | Son | New Worker | Colorado |
| 27 | Ernestina Martinez | 14 | Daughter | — | Colorado |
| 28 | Charlie Martinez | 12 | Son | — | Colorado |
| 29 | Daisy Martinez | 10 | Daughter | — | Colorado |
| 30 | Richard Martinez | 9 | Son | — | Colorado |
| 31 | Alex Maes | 40 | Head | Labor | Colorado |
| 32 | Rebecca Maes | 28 | Wife | — | Colorado |
| 33 | Frances Maes | 8 | Daughter | — | Colorado |
| 34 | Fred I. Barron | 60 | Head | Janitor & Fireman | New Mexico |
| 35 | Amelia G. Barron | 49 | Wife | Chiropodist | Mexico |
| 36 | Joseph B. Barron | 10 | Nephew | — | Colorado |
| 37 | Harold H. Sanford | 31 | Head | Machine Operator | Kansas |
| 38 | Betty M. Sanford | 30 | Wife | — | Colorado |
| 39 | Edyth J. Sanford | 53 | Mother | — | Missouri |
| 40 | Fred C. Sanford | 17 | Brother | — | Nebraska |
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)