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Manuel Martinez — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rio-Grande-County, Colorado
Our Model Tree links this Manuel Martinez across the 1920, 1930 and 1940 US Censuses in Rio-Grande-County, Colorado (XGBoost, ~Confirmed), with identified parents Ralph & Adelia — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rio-Grande-County, Colorado |
| Surname | Martinez |
| Given Name | Manuel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Del Norte |
| 1935 Residence (County) | Rio Grande |
| Additional Details | |
| Occupation | Laborer |
| Industry | Maintenance |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 190 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Laborer |
| Township / Ward | Del Norte |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Manuel | Age | Birth yr |
|---|---|---|---|---|
| Josephine Martinez | Daughter | — | 17 | ~1923 |
| Atfo Martinez | Son | — | 21 | ~1919 |
| Manuel Martinez | Son | — | 20 | ~1920 |
| Ralph Martinez | Head | — | 44 | ~1896 |
| Genevieve Martinez | Daughter | — | 14 | ~1926 |
| Adelia Martinez | Spouse | — | 44 | ~1896 |
| Ernest Martinez | Son | — | 25 | ~1915 |
Census Appearances
1920
Rio Grande, …
Son, age
Rio Grande, Colorado · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marting |
| Given Name | Manuel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Rio Grande, …
Son, age 10
Rio Grande, Colorado · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Manuel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Rio-Grande-County, Colorado
Son, age 20
Rio-Grande-County, Colorado · implied b. ~1920 — 7 household members
| Surname | Martinez |
| Given Name | Manuel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Del Norte |
| 1935 Residence (County) | Rio Grande |
| Occupation | Laborer |
| Industry | Maintenance |
| Class of Worker | PW |
| Hours Worked | 25 |
| Income (1939) | 190 |
| Highest Grade | Hs 2 |
| 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 Manuel Martinez across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ralph Martinez (~0.92 confidence) and mother Adelia Martinez (~0.92 confidence) and mother Delia Marting (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ralph Martinez
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Adelia Martinez
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Delia Marting
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Manuel Martinez
Son · 1940 · age 20 · b. ~1920 · Colorado
★ You are viewing this record
Sibling
Josephine Martinez
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Atfo Martinez
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Martinez
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Martinez
Sibling · 1940 · age 14
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 — Rio-Grande-County, Colorado
Open full size
1940 US Federal Census — Rio-Grande-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00478-00253)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfonso Martinez | 24 | Head | Laborer | Colorado |
| 2 | Rosalie Martinez | 23 | Wife | Nurse | Colorado |
| 3 | Ramon Martinez | 22 | Head | — | New Mexico |
| 4 | Ralph Martinez | 44 | Head | Laborer | Colorado |
| 5 | Adelia Martinez | 44 | Wife | — | Colorado |
| 6 | Ernest Martinez | 25 | Son | Laborer | Colorado |
| 7 | Atfo Claude Martinez | 21 | Son | Typist | Colorado |
| 8 | Manuel Martinez THIS PERSON | 20 | Son | Laborer | Colorado |
| 9 | Josephine Martinez | 17 | Daughter | Assistant School Nurse | Colorado |
| 10 | Genevieve Martinez | 14 | Daughter | — | Colorado |
| 11 | Jacob Montoya | 46 | Head | Laborer | Colorado |
| 12 | Gormanita Montoya | 39 | Wife | — | Colorado |
| 13 | O. Ruby Montoya | 8 | Daughter | — | Colorado |
| 14 | G. Francisca Montoya | 5 | Daughter | — | Colorado |
| 15 | Miguelito Martinez | 34 | Head | — | Colorado |
| 16 | Victoria Martinez | 11 | Daughter | — | Colorado |
| 17 | Joe M. Montoya | 32 | Head | Laborer | Colorado |
| 18 | Mary Montoya | 33 | Wife | — | Colorado |
| 19 | Stella Montoya | 7 | Daughter | — | Colorado |
| 20 | Rudolph Montoya | 4 | Son | — | Colorado |
| 21 | Charles Montoya | 3 | Son | — | Colorado |
| 22 | Christina Montoya | 1 | Daughter | — | Colorado |
| 23 | Homer F. Buckbee | 30 | Head | Repairman | Oklahoma |
| 24 | Helen M. Buckbee | 27 | Wife | Laundress | Colorado |
| 25 | Juanita P. Buckbee | 5 | Daughter | — | Colorado |
| 26 | James B. Buckbee | 1 | Son | — | Colorado |
| 27 | Raymond Garcia | 30 | Head | Stone Cutter | Colorado |
| 28 | Reynalda Garcia | 26 | Wife | — | Colorado |
| 29 | Helen Garcia | 9 | Daughter | — | Colorado |
| 30 | Manuel Medina | 24 | Head | Laborer | Colorado |
| 31 | Mary Medina | 5 | Daughter | — | Colorado |
| 32 | Arsenio Medina | 4 | Son | — | Colorado |
| 33 | Margaret Medina | 1 | Daughter | — | Colorado |
| 34 | Isabelita Medina | 47 | Mother | — | Colorado |
| 35 | Onofre Medina | 18 | Brother | Laborer | Colorado |
| 36 | Vivian Medina | 15 | Brother | — | Colorado |
| 37 | Jim Adelmar Medina | 13 | Brother | — | Colorado |
| 38 | M. Irene Medina | 11 | Daughter | — | Colorado |
Pedigree Summary
Manuel + 4 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)