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Juan Martinez — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Los Angeles, California
Our Model Tree links this Juan Martinez across the 1910 and 1920 US Censuses in Los Angeles, California (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 9-person household.
Age 40
b. ~1880
Male
Head
Born: Mexico
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Los Angeles, California |
| Surname | Martinez |
| Given Name | Juan |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Mexican |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Mexico |
| Naturalization Status | Naturalized |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Additional Details | |
| Occupation | Laborer |
| Industry | General Work |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Spanish |
| Home Owned/Rented | R |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
| Occupation | Laborer |
| Township / Ward | Pasadena City |
| Est. Birth Year | ~1880 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Juan | Age | Birth yr |
|---|---|---|---|---|
| Eulalia Martinez | Spouse | — | 27 | ~1893 |
| Juan Martinez | Son | — | 8 | ~1912 |
| Benjamin Martinez | Son | — | 1 | ~1919 |
| Raphael Martinez | Daughter | — | 4 | ~1916 |
| Juan Martinez | Head | — | 40 | ~1880 |
| Esial Martinez | Son | — | 11 | ~1909 |
| Esther Martinez | Daughter | — | 13 | ~1907 |
| George Martinez | Son | — | 3 | ~1917 |
| Paul Martinez | Son | — | 6 | ~1914 |
Census Appearances
1910
Los Angeles, …
Other, age 32
Los Angeles, California · implied b. ~1878 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Juan |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Mexico |
| Years Married | 10 |
| Year of Immigration | 1898 |
| Naturalization Status | Alien |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Occupation | Laborer |
| Industry | Brick Yd. |
| Can Read | No |
| Can Write | No |
| Speaks English | Spanish |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
1920
Los Angeles, …
Head, age 40
Los Angeles, California · implied b. ~1880 — 9 household members
| Surname | Martinez |
| Given Name | Juan |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Mexican |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Mexico |
| Naturalization Status | Naturalized |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Occupation | Laborer |
| Industry | General Work |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Spanish |
| Home Owned/Rented | R |
| Birth Country | Mexico |
| Birthplace (normalized) | mexico |
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 (1910 and 1920) in Los Angeles, California, using XGBoost record linkage.
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This person
Anchor record
Juan Martinez
Head · 1920 · age 40 · b. ~1880 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Los Angeles, California
Open full size
1920 US Federal Census — Los Angeles, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu117unit:1085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert D. Hawke | 39 | Head | Salesman | Massachusetts |
| 2 | Mary C. Hawke | 41 | Boarder | — | Vermont |
| 3 | Mary B. Hawke | 69 | Mother | — | Massachusetts |
| 4 | William S. Conner | 66 | Head | Carpenter | West Virginia |
| 5 | Emma E. Conner | 77 | Wife | — | West Virginia |
| 6 | Grace M. Mancy | 32 | Roomer | — | Alabama |
| 7 | Harlan H. Lund | 35 | Roomer | Mechanic | Kansas |
| 8 | Olive Lund | 31 | Roomer | — | Kansas |
| 9 | Wynnette E. Rudell | 21 | Head | Mechanic | Illinois |
| 10 | Martha E. Rudell | 21 | Wife | Bookkeeper | West Virginia |
| 11 | Clarence C. Sommer | 22 | Roomer | Mechanic | West Virginia |
| 12 | Harriet Helfort | 51 | Roomer | Demonstrator | Michigan |
| 13 | John C. Mclemore | 57 | Head | Manager | Virginia |
| 14 | Ellen Mclemore | 50 | Wife | — | Ireland |
| 15 | John C. Mclemore | 21 | Son | Mechanic | South Dakota |
| 16 | Grace C. Mclemore | 13 | Daughter | — | Colorado |
| 17 | Helen A. Mclemore | 11 | Daughter | — | Colorado |
| 18 | Jane Mclemore | 79 | Mother | — | Alabama |
| 19 | Bessie E. Mclemore | 45 | Sister | Secretary | Texas |
| 20 | Joseph F. Brown | 59 | Head | Porter | Canada |
| 21 | Gertrude F. Brown | 50 | Wife | — | Vermont |
| 22 | Helen M. Brown | 19 | Daughter | — | California |
| 23 | Doris L. Brown | 15 | Daughter | — | California |
| 24 | Austin Munger | 75 | Head | — | Iowa |
| 25 | Mary E. Munger | 76 | Wife | — | Wisconsin |
| 26 | Fred P. Burnham | 53 | Son-in-law | Merchant | Iowa |
| 27 | Laura A. Burnham | 53 | Daughter | — | Wisconsin |
| 28 | Robert J. Salter | 43 | Head | — | Canada |
| 29 | Daisy E. Salter | 45 | Wife | — | Georgia |
| 30 | Caroline M. Salter | 13 | Daughter | — | Georgia |
| 31 | Nettie Johnson | 20 | Servant | Housekeeper | Colorado |
| 32 | Elizabeth W. Udell | 56 | Head | — | Missouri |
| 33 | Zoe Udell | 26 | Daughter | Musician | California |
| 34 | Ethel Udell | 21 | Daughter | Photographer | California |
| 35 | Marinus Wentink | 72 | Head | Minister | Netherlands |
| 36 | Jessie Wentink | 55 | Sister | — | Netherlands |
| 37 | Henrietta L. Wentink | 57 | Sister | Stenographer | Michigan |
| 38 | Juan Martinez THIS PERSON | 40 | Head | Laborer | Mexico |
| 39 | Eulalia F. Martinez | 27 | Wife | — | Texas |
| 40 | Esther Martinez | 13 | Daughter | — | New Mexico |
| 41 | Esial Martinez | 11 | Son | — | New Mexico |
| 42 | Juan Martinez | 8 | Son | — | New Mexico |
| 43 | Paul Martinez | 6 | Son | — | New Mexico |
| 44 | Raphael Martinez | 4 | Daughter | — | New Mexico |
| 45 | George Martinez | 3 | Son | — | California |
| 46 | Benjamin Martinez | 1 | Son | — | California |
| 47 | Theodore G. Mata | 40 | Head | Foundry | Mexico |
| 48 | Carmen G. Mata | 38 | Wife | — | Mexico |
| 49 | Theodore G. Mata | 16 | Son | — | Mexico |
| 50 | Ellen Mata | 11 | Daughter | — | California |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)