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Juan Martinez — 1930 US Census Record
Model Tree available1930 United States Federal Census · Union, New Mexico
Our Model Tree links this Juan Martinez across the 1900, 1910, 1920 and 1930 US Censuses in Union, New Mexico (XGBoost, ~Confirmed), with identified parents Brigida & Blas — first a son (b.~1900), then head of a 4-person household.
Age 30
b. ~1900
Male
Son
Born: Colorado
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Union, New Mexico |
| Surname | Martinez |
| Given Name | Juan N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | Colorado |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Veteran | no |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Laborer |
| Township / Ward | Folsom Town |
| Est. Birth Year | ~1900 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Juan | Age | Birth yr |
|---|---|---|---|---|
| Pelegrina Martinez | Spouse | — | 45 | ~1885 |
| Felipe Martinez | Son | — | 20 | ~1910 |
| Juan Martinez | Son | — | 30 | ~1900 |
| Blas Martinez | Head | — | 66 | ~1864 |
Census Appearances
1900
Las Animas, …
Son, age 2
Las Animas, Colorado · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Juan E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Colorado |
| Birth Month | Sept |
| Birth Year | 1898 |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | New Mexico |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1910
Las Animas, …
Son, age 11
Las Animas, Colorado · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Juan |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | New Mexico |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Las Animas, …
Son, age 20
Las Animas, Colorado · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Juan |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | Colorado |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Union, New …
Son, age 30
Union, New Mexico · implied b. ~1900 — 4 household members
| Surname | Martinez |
| Given Name | Juan N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | Colorado |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Veteran | no |
| 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 4 US Census years (1900, 1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: mother Brigida Martinez (~0.92 confidence) and father Blas Martinez (~0.92 confidence) and father Desiderio Martinez (~0.92 confidence) and mother Pelegrina Martinez (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Brigida Martinez
b. ~1860
Source mother
● Household
· direct · ~0.92
Father
Blas Martinez
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Desiderio Martinez
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Pelegrina Martinez
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Juan Martinez
Son · 1930 · age 30 · b. ~1900 · New Mexico
★ You are viewing this record
Sibling
Felipe Martinez
Sibling · 1930 · age 20
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 — Union, New Mexico
Open full size
1930 US Federal Census — Union, New Mexico
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1400unit:0396)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Amelia | 4 | Daughter | — | New Mexico |
| 2 | Lucia | 2 | Daughter | — | New Mexico |
| 3 | Blas Martinez | 66 | Head | Farmer | New Mexico |
| 4 | Pelegrina R. Martinez | 45 | Wife | — | Colorado |
| 5 | Juan N. Martinez THIS PERSON | 30 | Son | Laborer | Colorado |
| 6 | Felipe Martinez | 20 | Son | Laborer | New Mexico |
| 7 | Jose M. Crispin | 61 | Head | Laborer | New Mexico |
| 8 | Carlota G. Crispin | 57 | Wife | — | New Mexico |
| 9 | Cesario S. Ortiz | 57 | Head | Section Foreman | Old Mexico |
| 10 | Carmelita G. Ortiz | 41 | Wife | — | Colorado |
| 11 | Manuela Ortiz | 22 | Daughter | — | Colorado |
| 12 | Jesus Ortiz | 13 | Son | — | Colorado |
| 13 | Margarita Ortiz | 8 | Daughter | — | New Mexico |
| 14 | Gabriel Ortiz | 5 | Son | — | New Mexico |
| 15 | — | None | — | — | — |
| 16 | — | None | — | — | — |
| 17 | — | None | — | — | — |
| 18 | — | None | — | — | — |
| 19 | — | None | — | — | — |
| 20 | — | None | — | — | — |
| 21 | — | None | — | — | — |
| 22 | — | None | — | — | — |
| 23 | — | None | — | — | — |
| 24 | — | None | — | — | — |
| 25 | — | None | — | — | — |
| 26 | — | None | — | — | — |
| 27 | — | None | — | — | — |
| 28 | — | None | — | — | — |
| 29 | — | None | — | — | — |
| 30 | — | None | — | — | — |
| 31 | — | None | — | — | — |
| 32 | — | None | — | — | — |
| 33 | — | None | — | — | — |
| 34 | — | None | — | — | — |
| 35 | — | None | — | — | — |
| 36 | — | None | — | — | — |
| 37 | — | None | — | — | — |
| 38 | — | None | — | — | — |
| 39 | — | None | — | — | — |
| 40 | — | None | — | — | — |
| 41 | — | None | — | — | — |
| 42 | — | None | — | — | — |
| 43 | — | None | — | — | — |
| 44 | — | None | — | — | — |
| 45 | — | None | — | — | — |
| 46 | — | None | — | — | — |
| 47 | — | None | — | — | — |
| 48 | — | None | — | — | — |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
Pedigree Summary
Juan + 1 sibling
Gen 1 · 4 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)