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Juan Martinez — 1930 US Census Record
Linked across censuses1930 United States Federal Census · None, None
Our Model Tree links this Juan Martinez across the 1920 and 1930 US Censuses (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 10-person household.
Age 18
b. ~1912
Male
Son
Born: Colorado
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | None, None |
| Surname | Martinez |
| Given Name | Juan L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Mexican |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | Colorado |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Est. Birth Year | ~1912 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Juan | Age | Birth yr |
|---|---|---|---|---|
| Tilo Martinez | Son | — | 8 | ~1922 |
| Virginia Martinez | Daughter | — | 3 | ~1927 |
| Manuel Martinez | Head | — | 50 | ~1880 |
| Alidoro Martinez | Son | — | 21 | ~1909 |
| Ernesto Martinez | Son | — | 25 | ~1905 |
| Marvin Martinez | Daughter | — | 14 | ~1916 |
| Carlos Martinez | Son | — | 11 | ~1919 |
| Juan Martinez | Son | — | 18 | ~1912 |
| Medardo Martinez | Son | — | 18 | ~1912 |
| Virginia Martinez | Other | — | 45 | ~1885 |
Census Appearances
1920
Conejos, Colorado
Son, age 7
Conejos, Colorado · implied b. ~1913 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Juan Luis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | Colorado |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
None, None
Son, age 18
None, None · implied b. ~1912 — 10 household members
| Surname | Martinez |
| Given Name | Juan L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Mexican |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | Colorado |
| Occupation | none |
| 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 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Juan Martinez
Son · 1930 · age 18 · b. ~1912 · None
★ You are viewing this record
Sibling
Tilo Martinez
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marvin Martinez
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Martinez
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carlos Martinez
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernesto Martinez
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alidoro Martinez
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Medardo Martinez
Sibling · 1930 · age 18
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 — None, None
Open full size
1930 US Federal Census — None, None
Page Contents
49 people indexed on this census page (ia:1930:15thcensus231unit:0628)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Armando | 10 | Son | None | Colorado |
| 2 | Samuel | 8 | Son | None | Colorado |
| 3 | Peraida | 6 | daughter | None | Colorado |
| 4 | Ruben | 4 | Son | None | Colorado |
| 5 | Reyes H Romero | 49 | head | Farmer | Colorado |
| 6 | Carlos Romero | 18 | Son | Laborer | Colorado |
| 8 | Adolfo Garamillo | 30 | head | Laborer | Colorado |
| 9 | Lucilla H Garamillo | 20 | wife-H | None | Colorado |
| 10 | Dukinea Garamillo | 1 | daughter | None | Colorado |
| 11 | Estevan Garamillo | 33 | Brother | Laborer | Colorado |
| 12 | Cornelio Lucero | 45 | head | Farmer | Colorado |
| 13 | Luaza Jito Lucero | 13 | Grandson | None | Colorado |
| 14 | Leonildo Lucero | 45 | head | Farmer | Colorado |
| 15 | Rebeca H Lucero | 44 | wife-H | None | Colorado |
| 16 | Amarante Lucero | 19 | Son | Laborer | Colorado |
| 17 | Samuel Lucero | 17 | Son | None | Colorado |
| 18 | Bena G. Lucero | 13 | daughter | None | Colorado |
| 19 | Merlinda G. Lucero | 11 | daughter | None | Colorado |
| 20 | Celina Lucero | 7 | daughter | None | Colorado |
| 21 | Rodolfo Martinez | 46 | head | Farmer | New Mexico |
| 22 | Elegia A. H Martinez | 46 | wife-H | None | Colorado |
| 23 | Victor A Martinez | 21 | Son | Laborer | Colorado |
| 24 | Belina Martinez | 17 | daughter | None | Colorado |
| 25 | Levi Martinez | 15 | Son | None | Colorado |
| 26 | Levina Martinez | 12 | daughter | None | Colorado |
| 27 | Lurina Martinez | 3 | daughter | None | Colorado |
| 28 | Abdonas Martinez | 44 | head | Farmer | New Mexico |
| 29 | Reginaldo H Martinez | 37 | wife-H | None | Colorado |
| 30 | E. Marte Martinez | 17 | Son | Laborer | Colorado |
| 31 | Eli Martinez | 15 | Son | None | Colorado |
| 32 | Olivama Martinez | 10 | daughter | None | Colorado |
| 33 | Ruben Martinez | 8 | Son | None | Colorado |
| 34 | Antonio Jr. Martinez | 4 | Son | None | Colorado |
| 35 | Samuel Martinez | 2 | Son | None | Colorado |
| 36 | Rodney Martinez | 0 | daughter | None | Colorado |
| 37 | Manuel Martinez | 50 | head | Farmer | New Mexico |
| 38 | Virginia S. H Martinez | 45 | wife-H | Farmer | New Mexico |
| 39 | Ernesto M. Martinez | 25 | Son | Laborer | Colorado |
| 40 | Alidoro Martinez | 21 | Son | Laborer | Colorado |
| 41 | Medardo Martinez | 18 | Son | Laborer | Colorado |
| 42 | Juan L. Martinez THIS PERSON | 18 | Son | None | Colorado |
| 43 | Marvin Martinez | 14 | daughter | None | Colorado |
| 44 | Carlos Martinez | 11 | Son | None | Colorado |
| 45 | Tilo Martinez | 8 | Son | None | Colorado |
| 46 | Virginia Martinez | 3 | daughter | None | Colorado |
| 47 | Daniel Lucero | 46 | head | Laborer | Colorado |
| 48 | Josefa F. H Lucero | 51 | wife-H | None | Colorado |
| 49 | Salomon Martinez | 23 | head | Laborer | Colorado |
| 50 | Lida H Martinez | 19 | wife-H | None | 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)