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John Silva — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this John Silva across the 1920, 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 6-person household.
Age 36
b. ~1894
Male
Head
Born: Portugal
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 24 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Additional Details | |
| Occupation | Oiler |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Occupation | Oiler |
| Township / Ward | Alameda City |
| Est. Birth Year | ~1894 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Anthony Silva | Son | — | 6 | ~1924 |
| Alma Silva | Daughter | — | 7 | ~1923 |
| Emily Silva | Daughter | — | 4 | ~1926 |
| Rita Silva | Daughter | — | 1 | ~1929 |
| John Silva | Head | — | 36 | ~1894 |
| Alma Silva | Other | — | 30 | ~1900 |
Census Appearances
1920
Alameda, California
Head, age 24
Alameda, California · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Portugal |
| Year of Immigration | 1910 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Carder |
| Industry | Wool Plant |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Alameda, California
Head, age 36
Alameda, California · implied b. ~1894 — 6 household members
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 24 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Oiler |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Alameda-County, California
Other, age 46
Alameda-County, California · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Portugal |
| 1935 Residence (City) | New York Queen |
| 1935 Residence (County) | New York |
| Naturalization Status | First papers filed |
| Occupation | Grocer |
| Industry | Restaurant |
| Class of Worker | OA |
| Hours Worked | 48 |
| Highest Grade | nr 8 |
| 1935 Residence | New York |
| 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 John Silva across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Silva
Head · 1930 · age 36 · b. ~1894 · California
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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_01_reel01:0805)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | C. Severance | 26 | Wife | Bookkeeper | California |
| 52 | Verna Severance | 51 | Mother-H | — | Wisconsin |
| 53 | Sidney G. Drake | 21 | Head | Ship Fitter | California |
| 54 | Emily E. Drake | 21 | Wife-H | — | California |
| 55 | Barbara F. Drake | 4 | Daughter | — | California |
| 56 | Russell Hans | 24 | Head | Bookkeeper | Wisconsin |
| 57 | Claribel Hans | 27 | Wife-H | — | California |
| 58 | Marjorie Hans | 4 | Daughter | — | California |
| 59 | John E. Hans | 2 | Son | — | California |
| 60 | Seth Walker | 73 | Head | Retired | New Hampshire |
| 61 | Lulu Walker | 62 | Wife-H | — | Ohio |
| 62 | Louise Walker | 27 | Daughter | Nurse | California |
| 63 | Kelvin Martin | 42 | Head | Finisher | Denmark |
| 64 | Anna E. Coffey | 52 | Head-H | Binder | New York |
| 65 | Enid Coffey | 34 | Head | Car Builder | Scotland |
| 66 | Rose Coffey | 31 | Sister | — | Scotland |
| 67 | Edith Coffey | 25 | Sister | — | California |
| 68 | Edith Coffey | 5 | Daughter | — | California |
| 69 | Frederick Farnsworth | 64 | Head | Retired | New York |
| 70 | Alice Farnsworth | 62 | Wife-H | — | California |
| 71 | Albert G. Pinessa | 41 | Head | Watchman | California |
| 72 | Hannah Pinessa | 36 | Wife-H | — | California |
| 73 | Alfred Pinessa | 18 | Son | Laborer | California |
| 74 | Clara Pinessa | 14 | Daughter | Helper | California |
| 75 | Alice Pinessa | 12 | Daughter | — | California |
| 76 | Patricia Pinessa | 6 | Daughter | — | California |
| 77 | Ruth Pinessa | 2 | Daughter | — | California |
| 78 | John Silva THIS PERSON | 36 | Head | Oiler | Portugal |
| 79 | Alma Silva | 30 | Wife-H | Laborer | Portugal |
| 80 | Alma Silva | 7 | Daughter | — | California |
| 81 | Anthony Silva | 6 | Son | — | California |
| 82 | Emily Silva | 4 | Daughter | — | California |
| 83 | Rita Silva | 1 | Daughter | — | California |
| 84 | Manuel Silva | 45 | Head | Blacksmith | Portugal |
| 85 | Antonio Medeiros | 45 | Head | — | Portugal |
| 86 | Amanda Medeiros | 36 | Wife-H | Cleaner Car | Portugal |
| 87 | Arline Medeiros | 10 | Daughter | — | California |
| 88 | Bernice Medeiros | 8 | Daughter | — | California |
| 89 | Bernice Medeiros | 1 | Son | — | California |
| 90 | Alma Duarte | 40 | Head | — | California |
| 91 | Eleanor Duarte | 19 | Daughter | Filer | California |
| 92 | Lois Duarte | 14 | Daughter | — | California |
| 93 | Theodore Duarte | 10 | Son | — | California |
| 94 | Charles L. Duarte | 54 | Brother | Baker | Nebraska |
| 95 | John G. Banks | 33 | Head | Clerk | Washington |
| 96 | Irene W. Banks | 26 | Wife-H | — | California |
| 97 | Irene E. Banks | 4 | Daughter | — | California |
| 98 | John Hickey | 71 | Head | Retired | Free State |
| 99 | Mary Hickey | 31 | Daughter | — | California |
| 100 | Clothilde Prothero | 71 | Head-H | — | France |
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)