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Josephine Martin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this Josephine Martin across the 1920 and 1930 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 9-person household.
Age 15
b. ~1915
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Martin |
| Given Name | Josephine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Spain |
| Mother's Birthplace | Spain |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Eden Township Valle Vista Precinct |
| Est. Birth Year | ~1915 |
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 1930 census.
| Name | Relation to head | Relative to Josephine | Age | Birth yr |
|---|---|---|---|---|
| Willie Martin | Daughter | — | 7 | ~1923 |
| Josephine Martin | Daughter | — | 15 | ~1915 |
| Henry Martin | Head | — | 58 | ~1872 |
| Henry Martin | Son | — | 13 | ~1917 |
| Felipa Martin | Spouse | — | 51 | ~1879 |
| Andy Martin | Son | — | 12 | ~1918 |
| Unknown Unknown | Other | — | — | |
| Mario Martin | Son | — | 11 | ~1919 |
| Augusta Martin | Daughter | — | 17 | ~1913 |
Census Appearances
1920
Alameda, California
Daughter, age 5
Alameda, California · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Josephine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Spain |
| Mother's Birthplace | Spain |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Alameda, California
Daughter, age 15
Alameda, California · implied b. ~1915 — 9 household members
| Surname | Martin |
| Given Name | Josephine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Spain |
| Mother's Birthplace | Spain |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Josephine Martin across 2 US Census years (1920 and 1930) in Alameda, California, using XGBoost record linkage.
Show:
This person
Anchor record
Josephine Martin
Daughter · 1930 · age 15 · b. ~1915 · California
★ You are viewing this record
Sibling
Augusta Martin
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Martin
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mario Martin
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Martin
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andy Martin
Sibling · 1930 · age 12
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 — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:acpl_california_10_reel10:0533)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Manuel Gomes | 7 | Son | — | California |
| 52 | Melvin Gomes | 3 | Son | — | California |
| 53 | Mary Duarte | 25 | Head | — | California |
| 54 | — | None | — | — | — |
| 55 | — | None | — | — | — |
| 56 | — | None | — | — | — |
| 57 | — | None | — | — | — |
| 58 | — | None | — | — | — |
| 59 | — | None | — | — | — |
| 60 | — | None | — | — | — |
| 61 | Manuel Joseph | 41 | Head | Laborer | Honolulu |
| 62 | Mae Joseph | 32 | Wife | Ironer | Honolulu |
| 63 | Adeline Joseph | 15 | Daughter | — | California |
| 64 | Ann Marie Joseph | 8 | Daughter | — | California |
| 65 | Henry Martin | 58 | Head | Laborer | Spain |
| 66 | Felipa Martin | 51 | Wife | Laborer | Spain |
| 67 | Augusta Martin | 17 | Daughter | Laborer | Honolulu |
| 68 | Josephine Martin THIS PERSON | 15 | Daughter | — | California |
| 69 | Henry Martin | 13 | Son | — | California |
| 70 | Andy Martin | 12 | Son | — | California |
| 71 | Mario Martin | 11 | Son | — | California |
| 72 | Willie Martin | 7 | Daughter | — | California |
| 73 | Unknown Unknown | None | — | — | — |
| 74 | Antonio Hernandez | 27 | Head | — | Spain |
| 75 | Clarence Hernandez | 13 | Son | — | California |
| 76 | Lucy Hernandez | 10 | Daughter | — | California |
| 77 | Martin Hernandez | 9 | Son | — | California |
| 78 | Tony Hernandez | 7 | Son | — | California |
| 79 | Gordon Hernandez | 6 | Son | — | California |
| 80 | Marie Hernandez | 3 | Daughter | — | California |
| 81 | Peter Hernandez | 1 | Son | — | California |
| 82 | Andrew Rodrigues | 30 | Head | Laborer | Porto Rico |
| 83 | Mary Rodrigues | 25 | Wife | — | Porto Rico |
| 84 | Milo Rodrigues | 7 | Son | — | California |
| 85 | John Rodrigues | 6 | Son | — | California |
| 86 | Mary Rodrigues | 4 | Daughter | — | California |
| 87 | Eufemia Maldonado | 30 | Head | Laborer | Porto Rico |
| 88 | Eufemia Maldonado | 29 | Wife | — | Porto Rico |
| 89 | Candicara Maldonado | 9 | Daughter | — | Porto Rico |
| 90 | Christina Pagan | 26 | Sister-in-law | — | Porto Rico |
| 91 | Tony Pagan | 30 | Brother-in-law | Laborer | Porto Rico |
| 92 | Joe Pagan | 6 | Nephew | — | Porto Rico |
| 93 | Pordenciano Carmo | 55 | Head | Laborer | Portugal |
| 94 | Mary Ann Carmo | 50 | Wife | Laborer | Portugal |
| 95 | Edward Carmo | 21 | Son | Laborer | Portugal |
| 96 | Lucie Carmo | 9 | Daughter | Laborer | Portugal |
| 97 | George Gouveia | 31 | Head | Dept Constable | California |
| 98 | Mary Gouveia | 24 | Wife | Cutter | Spain |
| 99 | Eleanor Gouveia | 4 | Daughter | — | California |
| 100 | Maynard Gouveia | 3 | Son | — | California |
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)