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Juan Martinez — 1930 US Census Record
Model Tree available1930 United States Federal Census · Costilla, Colorado
Our Model Tree links this Juan Martinez across the 1910, 1920 and 1930 US Censuses in Costilla, Colorado (XGBoost, ~Confirmed), with identified parents Jose & Rumaldo — first a son (b.~1888), then head of a 5-person household.
Age 42
b. ~1888
Male
Son
Born: Colorado
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Costilla, Colorado |
| Surname | Martinez |
| Given Name | Juan J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | New Mexico |
| Additional Details | |
| Occupation | Farmer |
| Industry | Diversified farming |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Farmer |
| Township / Ward | San Luis Village |
| Est. Birth Year | ~1888 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Juan | Age | Birth yr |
|---|---|---|---|---|
| Diego Martinez | Son | — | 27 | ~1903 |
| Juan Martinez | Son | — | 42 | ~1888 |
| Guadalupe Martinez | Head | — | 63 | ~1867 |
| Juanita Martinez | Other | — | 17 | ~1913 |
| Harlene Trujillo | Other | — | 5 | ~1925 |
Census Appearances
1910
Taos, New …
Son, age 22
Taos, New Mexico · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Juan B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Colorado |
| Years Married | 2 |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | Colorado |
| Occupation | Laborer |
| Industry | Rail Road |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Costilla, Colorado
Son, age 33
Costilla, Colorado · implied b. ~1887 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Juan J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | New Mexico |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Costilla, Colorado
Son, age 42
Costilla, Colorado · implied b. ~1888 — 5 household members
| Surname | Martinez |
| Given Name | Juan J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | New Mexico |
| Occupation | Farmer |
| Industry | Diversified farming |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Juan Martinez across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: father Jose Martinez (~0.92 confidence) and father Rumaldo Martinez (~0.92 confidence) and mother Aniceta Martinez (~0.92 confidence) and father Guadalupe Martinez (~0.92 confidence) and mother Guadalupe Martinez (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jose Martinez
b. ~1845
Source father
● Household
· direct · ~0.92
Father
Rumaldo Martinez
b. ~1852
Source father
● Household
· direct · ~0.92
Mother
Aniceta Martinez
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
Guadalupe Martinez
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Guadalupe Martinez
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Juan Martinez
Son · 1930 · age 42 · b. ~1888 · Colorado
★ You are viewing this record
Sibling
Diego Martinez
Sibling · 1930 · age 27
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
1930 US Federal Census — Costilla, Colorado
Open full size
1930 US Federal Census — Costilla, Colorado
Page Contents
50 people indexed on this census page (ia:1930:15thcensus231unit:0830)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Elizaida Olivas | 27 | Daughter | — | Colorado |
| 52 | Celestino Aragon | 26 | Son in law | Farm Operator | New Mexico |
| 53 | Nepomucena Aragon | 22 | Daughter | — | Colorado |
| 54 | Mauricia Aragon | 10 | Grand daughter | — | Colorado |
| 55 | Arabela Sandoval | 6 | Grand daughter | — | Colorado |
| 56 | Gomedan Padilla | 22 | Head | Farm Operator | Colorado |
| 57 | Alvina Padilla | 37 | Wife | — | Colorado |
| 58 | Roberto Padilla | 17 | Son | — | Colorado |
| 59 | Maria Padilla | 11 | Daughter | — | Colorado |
| 60 | Victor Padilla | 9 | Son | — | Colorado |
| 61 | Ubaldo Padilla | 8 | Son | — | Colorado |
| 62 | Lucille Padilla | 7 | Daughter | — | Colorado |
| 63 | Sema Padilla | 5 | Daughter | — | Colorado |
| 64 | Martina Padilla | 70 | Mother | — | New Mexico |
| 65 | Juan C. Lobato | 42 | Head | Farmer | New Mexico |
| 66 | Sabina Lobato | 42 | Wife | — | Colorado |
| 67 | Felipe N. William Lobato | 18 | Son | — | Colorado |
| 68 | Anita Lobato | 14 | Daughter | — | Colorado |
| 69 | Ernesto Lobato | 12 | Son | — | Colorado |
| 70 | Gerinda Lobato | 9 | Daughter | — | Colorado |
| 71 | Coralia Lobato | 6 | Daughter | — | Colorado |
| 72 | Julian Lobato | 4 | Son | — | Colorado |
| 73 | Damasio Lucero | 40 | Head | Truck Driver | Colorado |
| 74 | Filomena Lucero | 31 | Wife | — | Colorado |
| 75 | Rosenda Lucero | 14 | Daughter | — | Colorado |
| 76 | Ernestina Lucero | 12 | Daughter | — | Colorado |
| 77 | Orlando Lucero | 4 | Son | — | Colorado |
| 78 | Beatriz Lucero | 2 | Daughter | — | Colorado |
| 79 | Maria Dolores Lucero | 0 | Daughter | — | Colorado |
| 80 | Juan J. Martinez | 41 | Head | Farm Operator | New Mexico |
| 81 | Aniceta Martinez | 36 | Wife | — | Colorado |
| 82 | Guadalupe Martinez | 63 | Head | — | New Mexico |
| 83 | Juan J. Martinez THIS PERSON | 42 | Son | Farmer | Colorado |
| 84 | Diego Martinez | 27 | Son | Farm Laborer | Colorado |
| 85 | Juanita Martinez | 17 | Daughter in law | — | Colorado |
| 86 | Harlene Trujillo | 5 | Grandson | — | Colorado |
| 87 | John De Anni | 38 | Head | — | Italy |
| 88 | Lucy De Anni | 34 | Wife | — | Colorado |
| 89 | William J. De Anni | 7 | Son | — | Colorado |
| 90 | Alvera De Anni | 5 | Daughter | — | Colorado |
| 91 | Arthur De Anni | 2 | Son | — | Colorado |
| 92 | Catalina Frey | 45 | Head | — | Colorado |
| 93 | Marcelino Frey | 16 | Son | — | Colorado |
| 94 | Melicia Frey | 11 | Daughter | — | Colorado |
| 95 | Filomena Vigil | 60 | Step mother | — | Colorado |
| 96 | Robert Veliz | 24 | Lodger | Herder | Colorado |
| 97 | Antonio Veliz | 22 | Lodger | Farm Laborer | Colorado |
| 98 | Justina Bernal | 46 | Head | — | New Mexico |
| 99 | Modesto Bernal | 18 | Son | — | New Mexico |
| 100 | Zacarias Bernal | 11 | Son | — | New Mexico |
Pedigree Summary
Juan + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)