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John Silva — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Santa-Clara-County, California
Our Model Tree links this John Silva across the 1910, 1920, 1930 and 1940 US Censuses in Santa-Clara-County, California (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 4-person household.
Age 49
b. ~1891
Male
Head
Born: Portugal
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Santa-Clara-County, California |
| Surname | Silva |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Portugal |
| 1935 Residence (City) | Santa Clara City |
| 1935 Residence (County) | Santa Clara |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | laborer |
| Industry | foundry |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 300 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Occupation | Laborer |
| Township / Ward | Santa Clara City |
| Est. Birth Year | ~1891 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Velma Silva | Daughter | — | 12 | ~1928 |
| Thomas Silva | Son | — | 29 | ~1911 |
| Augustina Silva | Spouse | — | 48 | ~1892 |
| John Silva | Head | — | 49 | ~1891 |
Census Appearances
1910
San Luis …
Other, age 18
San Luis Obispo, California · implied b. ~1892 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Hired man |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Portugal |
| Year of Immigration | 1907 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Laborer |
| Industry | Dairy Farm |
| Can Read | Yes |
| Can Write | No |
| Speaks English | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1920
Sacramento, California
Other, age 28
Sacramento, California · implied b. ~1892 — 22 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Hired man |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Portugal |
| Year of Immigration | 1909 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Laborer |
| Industry | Stock farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Santa Clara, …
Head, age 39
Santa Clara, California · implied b. ~1891 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Alien |
| Year of Immigration | 1908 |
| Age at First Marriage | 25 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Laborer |
| Industry | General Work |
| Class of Worker | W |
| Can Read/Write | No |
| Mother Tongue | Portuguese |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Santa-Clara-County, California
Head, age 49
Santa-Clara-County, California · implied b. ~1891 — 4 household members
| Surname | Silva |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Portugal |
| 1935 Residence (City) | Santa Clara City |
| 1935 Residence (County) | Santa Clara |
| Naturalization Status | Alien |
| Occupation | laborer |
| Industry | foundry |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 300 |
| Highest Grade | No 0 |
| 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 John Silva across 4 US Census years (1910, 1920, 1930 and 1940) in 4 locations, using XGBoost record linkage.
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This person
Anchor record
John Silva
Head · 1940 · age 49 · b. ~1891 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Santa-Clara-County, California
Open full size
1940 US Federal Census — Santa-Clara-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00340-00366)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Gunds | 19 | daughter | Nursery Work | Washington |
| 42 | Margaret Gunds | 17 | daughter | Nursery Work | Washington |
| 43 | Barbara Gunds | 13 | daughter | — | California |
| 44 | Chester Gunds | 12 | son | — | California |
| 45 | Nancy Gunds | 4 | daughter | — | California |
| 46 | John Gama | 60 | head | Laborer | Portugal |
| 47 | Mary Gama | 50 | wife | — | Portugal |
| 48 | Joseph Gama | 18 | son | Station Attendant | California |
| 49 | Daniel Gama | 15 | son | — | California |
| 50 | Raymond Gama | 10 | son | — | California |
| 51 | Edson Owen | 29 | head | Truck Driver | California |
| 52 | Evelyn Owen | 29 | wife | — | Oregon |
| 53 | Edson Owen | 9 | son | — | California |
| 54 | Evelyn Owen | 7 | daughter | — | California |
| 55 | Manuel Marchant | 35 | head | Proprietor | Portugal |
| 56 | Rose Marchant | 23 | wife | Clerk | California |
| 57 | Robert Marchant | 4 | son | — | California |
| 58 | Mary Vieira | 46 | head | Cutter | Portugal |
| 59 | John Vieira | 18 | son | Laborer | California |
| 60 | Evelyn Vieira | 16 | daughter | — | California |
| 61 | Raymond Vieira | 10 | son | — | California |
| 62 | John Silva THIS PERSON | 49 | head | Laborer | Portugal |
| 63 | Augustina Silva | 48 | wife | — | Portugal |
| 64 | Thomas Silva | 29 | son | Laborer | At sea |
| 65 | Velma Silva | 12 | daughter | — | California |
| 66 | Joseph Catalano | 41 | head | Proprietor | Italy |
| 67 | Catherine Catalano | 36 | wife | — | New York |
| 68 | Joseph Catalano | 12 | son | — | New York |
| 69 | Beatrice Catalano | 11 | daughter | — | New York |
| 70 | Mary Catalano | 8 | daughter | — | New York |
| 71 | Frank Catalano | 2 | son | — | California |
| 72 | Manuel Tesseira | 50 | head | Laborer | Portugal |
| 73 | Vecina Tesseira | 50 | wife | — | Portugal |
| 74 | Joseph Tesseira | 26 | son | Laborer | Hawaii |
| 75 | Mary Bernardo | 54 | head | Laborer | Portugal |
| 76 | Henry Bernardo | 25 | head | Molder | California |
| 77 | Carmelinda Bernardo | 21 | wife | — | Azores |
| 78 | Beatrice Bernardo | 1 | daughter | — | California |
| 79 | Henry Jr. Bernardo | 0 | son | — | California |
| 80 | Manuel Bernardo | 20 | head | Tree Surgeon | California |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)