JM
Jose Martinez — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Costilla, Colorado
Our Model Tree links this Jose Martinez across the 1920 and 1930 US Censuses in Costilla, Colorado (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 11-person household.
Age 12
b. ~1918
Male
Son
Born: Colorado
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Costilla, Colorado |
| Surname | Martinez |
| Given Name | Jose |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Precinct 6 Old San Acacio |
| Est. Birth Year | ~1918 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Jose | Age | Birth yr |
|---|---|---|---|---|
| Virginia Martinez | Daughter | — | 5 | ~1925 |
| Dionicia Martinez | Daughter | — | 16 | ~1914 |
| Delfina Martinez | Daughter | — | 18 | ~1912 |
| Cecelia Martinez | Daughter | — | 3 | ~1927 |
| Maria Martinez | Daughter | — | 14 | ~1916 |
| Crecencia Martinez | Daughter | — | 6 | ~1924 |
| Aniceto Martinez | Head | — | 46 | ~1884 |
| Victorino Martinez | Son | — | 10 | ~1920 |
| Jose Martinez | Son | — | 12 | ~1918 |
| Teresina Martinez | Son | — | ~1930 | |
| Candelaria Martinez | Spouse | — | 38 | ~1892 |
Census Appearances
1920
Costilla, Colorado
Son, age 1
Costilla, Colorado · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Jose |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Colorado |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Costilla, Colorado
Son, age 12
Costilla, Colorado · implied b. ~1918 — 11 household members
| Surname | Martinez |
| Given Name | Jose |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 |
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 Jose Martinez across 2 US Census years (1920 and 1930) in Costilla, Colorado, using XGBoost record linkage.
Show:
This person
Anchor record
Jose Martinez
Son · 1930 · age 12 · b. ~1918 · Colorado
★ You are viewing this record
Sibling
Delfina Martinez
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victorino Martinez
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecelia Martinez
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maria Martinez
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dionicia Martinez
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Martinez
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Crecencia Martinez
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Teresina Martinez
Sibling · 1930 · age
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:0898)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Antonio Velasquez | 30 | Head | Laborer | Colorado |
| 2 | Lupita Velasquez | 28 | Wife | — | Colorado |
| 3 | Esperanza Velasquez | 13 | Daughter | — | Colorado |
| 4 | Corfiria Velasquez | 10 | Daughter | — | Colorado |
| 5 | Petrilia Velasquez | 7 | Daughter | — | Colorado |
| 6 | Anna Velasquez | 2 | Daughter | — | Colorado |
| 7 | Orlinda Velasquez | 0 | Daughter | — | Colorado |
| 8 | Jose Adelino Loytal | 45 | Head | Farmer | New Mexico |
| 9 | Adelina Loytal | 34 | Wife | — | Colorado |
| 10 | Fermin Loytal | 17 | Son | — | Colorado |
| 11 | Ernesto Loytal | 16 | Son | — | Colorado |
| 12 | Amadeo Loytal | 14 | Son | — | Colorado |
| 13 | Berta Loytal | 7 | Daughter | — | Colorado |
| 14 | Agapito Loytal | 5 | Son | — | Colorado |
| 15 | Aniceto Martinez | 46 | Head | Farming | Colorado |
| 16 | Candelaria Martinez | 38 | Wife | — | Colorado |
| 17 | Delfina Martinez | 18 | Daughter | — | Colorado |
| 18 | Dionicia Martinez | 16 | Daughter | — | Colorado |
| 19 | Maria Martinez | 14 | Daughter | — | Colorado |
| 20 | Jose Martinez THIS PERSON | 12 | Son | — | Colorado |
| 21 | Victorino Martinez | 10 | Son | — | Colorado |
| 22 | Crecencia Martinez | 6 | Daughter | — | Colorado |
| 23 | Virginia Martinez | 5 | Daughter | — | Colorado |
| 24 | Cecelia Martinez | 3 | Daughter | — | Colorado |
| 25 | Teresina Martinez | 0 | Son | — | Colorado |
| 26 | Jose Loytal | 84 | Head | — | New Mexico |
| 27 | Lupito Velasquez | 62 | Head | Farmer | New Mexico |
| 28 | Santana Velasquez | 59 | Wife | — | Colorado |
| 29 | Pedro Velasquez | 19 | Nephew | — | Colorado |
| 30 | Sigifredo Romero | 4 | Nephew | — | Colorado |
| 31 | Domingo Martinez | 50 | Head | Laborer | New Mexico |
| 32 | Rafaela Martinez | 48 | Wife | — | Colorado |
| 33 | Filomena Martinez | 16 | Daughter | — | Colorado |
| 34 | Abel Trujillo | 32 | Head | Salesman | Colorado |
| 35 | Eloisa Trujillo | 29 | Wife | — | Colorado |
| 36 | Samuel Trujillo | 7 | Son | — | Colorado |
| 37 | Annie Trujillo | 5 | Daughter | — | Colorado |
| 38 | Julianita Trujillo | 4 | Daughter | — | Colorado |
| 39 | Refugio Trujillo | 3 | Daughter | — | Colorado |
| 40 | Antiguela Trujillo | 0 | Daughter | — | Colorado |
| 41 | Celestino Quintana | 30 | Head | Truck Farmer | Colorado |
| 42 | Josephine Quintana | 26 | Wife | — | Colorado |
| 43 | Adelia Quintana | 9 | Daughter | — | Colorado |
| 44 | Jose Quintana | 7 | Son | — | Colorado |
| 45 | Valentin Quintana | 4 | Son | — | Colorado |
| 46 | Cordilia Quintana | 2 | Daughter | — | Colorado |
| 47 | Juanito Mondragon | 52 | Head | — | Colorado |
| 48 | Alonzo Mondragon | 18 | Son | — | Colorado |
| 49 | Ramohata Mondragon | 15 | Daughter | — | Colorado |
| 50 | Teodorita Mondragon | 12 | Daughter | — | Colorado |
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)