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Mary Martin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Alameda, California
Our Model Tree links this Mary Martin across the 1920, 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 6-person household.
Age 30
b. ~1890
Female
Spouse
Born: Portugal
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Alameda, California |
| Surname | Martin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Portugal |
| Year of Immigration | 1910 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Additional Details | |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Township / Ward | Washington Township Newark Precinct |
| Est. Birth Year | ~1890 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mabel Martin | Daughter | — | 1 | ~1919 |
| Minnie Martin | Daughter | — | 11 | ~1909 |
| Louis Martin | Head | — | 33 | ~1887 |
| Joseph Martin | Son | — | 5 | ~1915 |
| Samuel Martin | Son | — | 8 | ~1912 |
| Mary Martin | Spouse | — | 30 | ~1890 |
Census Appearances
1920
Alameda, California
Spouse, age 30
Alameda, California · implied b. ~1890 — 6 household members
| Surname | Martin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Portugal |
| Year of Immigration | 1910 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Alameda, California
Spouse, age 40
Alameda, California · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marie A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Alien |
| Year of Immigration | 1912 |
| Age at First Marriage | 16 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | none |
| Can Read/Write | No |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
Head, age 50
San-Francisco-County, California · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marie G. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Naturalization Status | First papers filed |
| Occupation | Housekeeper |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 500 |
| Highest Grade | H 2 2 |
| 1935 Residence | Same place |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
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 Mary Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Martin
Spouse · 1920 · age 30 · b. ~1890 · 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 — Alameda, California
Open full size
1920 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu092unit:0537)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bertha Gundersen | 43 | Wife | Laborer | Switzerland |
| 2 | John L. Gundersen | 8 | Son | — | California |
| 3 | Alfred W. Gundersen | 7 | Son | — | California |
| 4 | Ernest J. Gundersen | 6 | Son | — | California |
| 5 | Manuel Quadros | 42 | Head | Farmer | California |
| 6 | Mary E. Quadros | 46 | Wife | — | California |
| 7 | Leland H. Quadros | 13 | Son | — | California |
| 8 | George H. Currier | 53 | Head | Manager | Wisconsin |
| 9 | Minnie Currier | 51 | Wife | Housewife | Wisconsin |
| 10 | Edwin A. Day | 32 | Head | Civil Engineer | New York |
| 11 | Mabel B. Day | 31 | Wife | — | California |
| 12 | Ruth C. Day | 0 | Daughter | — | California |
| 13 | Mary J. Sobey | 67 | Head | Farmer | California |
| 14 | Robert J. Sobey | 67 | Brother | Laborer | California |
| 15 | Joseph G. Amaral | 74 | Head | — | Portugal |
| 16 | Grace E. Amaral | 53 | Wife | — | Portugal |
| 17 | Sara Amaral | 15 | Daughter | — | California |
| 18 | Daniel J. Amaral | 15 | Son | Laborer | California |
| 19 | Antone Amaral | 12 | Son | — | California |
| 20 | John D. Hartnett | 50 | Head | Farmer | Ireland |
| 21 | Margaret M. Hartnett | 51 | Wife | — | Ireland |
| 22 | Parketine E. Patton | 56 | Head | Farmer | Canada |
| 23 | Louis Joachin | 49 | Head | Saloon Keeper | Posen |
| 24 | Margaret P. Joachin | 33 | Wife | — | Ireland |
| 25 | Julia M. Joachin | 12 | Daughter | — | California |
| 26 | Louis Joachin | 7 | Son | — | California |
| 27 | Mary E. Silva | 40 | Head | — | Portugal |
| 28 | Anthony B. Silva | 24 | Son | Moulder | California |
| 29 | Manuel Silva | 23 | Son | Laborer | California |
| 30 | Joseph S. Silva | 18 | Son | Laborer | California |
| 31 | Mabel M. Silva | 13 | Daughter | — | California |
| 32 | Antone Dutra | 60 | Head | Janitor | Portugal |
| 33 | Mary S. Dutra | 54 | Wife | — | Portugal |
| 34 | Antone Dutra | 21 | Son | Electrician | California |
| 35 | Laura Dutra | 12 | Daughter | — | California |
| 36 | Louis S. Martin | 33 | Head | Laborer | Portugal |
| 37 | Mary Martin THIS PERSON | 30 | Wife | — | Portugal |
| 38 | Minnie Martin | 11 | Daughter | — | Portugal |
| 39 | Samuel Martin | 8 | Son | — | California |
| 40 | Joseph Martin | 5 | Son | — | California |
| 41 | Mabel Martin | 1 | Daughter | — | California |
| 42 | Joseph E. Peixotto | 20 | Head | Moulder | California |
| 43 | Caroline M. Peixotto | 20 | Wife | — | California |
| 44 | Antone S. Rose | 62 | Head | Farmer | Portugal |
| 45 | Minnie Rose | 41 | Wife | — | Portugal |
| 46 | Louisa Rose | 18 | Daughter | — | California |
| 47 | Minnie Rose | 15 | Daughter | — | California |
| 48 | Maria Rose | 9 | Daughter | — | California |
| 49 | Justin Rose | 6 | Son | — | California |
| 50 | Joaquin Peixotto | 60 | Head | Farmer | Portugal |
Related Census Records
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)