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John Silva — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this John Silva across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 8-person household.
Age 70
b. ~1870
Male
Head
Born: Portugal
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Portugal |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | First papers filed |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Township / Ward | Oakland |
| Est. Birth Year | ~1870 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Valadon | Daughter | — | 27 | ~1913 |
| Alfred Valadon | Other | — | 32 | ~1908 |
| John Silva | Head | — | 70 | ~1870 |
| Joyce Silva | Daughter | — | 9 | ~1931 |
| Lovelene Valadon | Daughter | — | 7 | ~1933 |
| Adalie Silva | Spouse | — | 62 | ~1878 |
| Lydia Silva | Daughter | — | 21 | ~1919 |
| Dorothy Silva | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Alameda, California
Head, age 47
Alameda, California · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Portugal |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Gardener |
| Industry | General |
| 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 59
Alameda, California · implied b. ~1871 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 28 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | O |
| Home Value / Rent | 6,000 |
| Veteran | No |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Alameda-County, California
Head, age 70
Alameda-County, California · implied b. ~1870 — 8 household members
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Portugal |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | First papers filed |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| 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 · 1940 · age 70 · b. ~1870 · 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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00442-00554)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louise Lewis | 11 | daughter | — | Calif. |
| 42 | Velma Lewis | 10 | daughter | — | Calif. |
| 43 | Mother Lewis | 65 | mother | — | Calif. |
| 44 | Cordelia Lewis | 1 | daughter | — | Calif. |
| 45 | Morse Harvey | 38 | Head | Laborer | Texas |
| 46 | Maxie Harvey | 37 | wife | — | Illinois |
| 47 | Mildred Littlefield | 32 | Head | Maid | Calif. |
| 48 | Henry Wellington | 28 | Head | Porter | Louisiana |
| 49 | Thelma Wellington | 32 | wife | — | Louisiana |
| 50 | Alvin Wellington | 13 | son | — | Louisiana |
| 51 | Doris Wellington | 10 | daughter | — | Louisiana |
| 52 | Aristide Wellington | 8 | son | — | Louisiana |
| 53 | Henry Jr. Wellington | 1 | son | — | Calif. |
| 54 | Dorothy Romain | 10 | Niece | — | Louisiana |
| 55 | John Silva THIS PERSON | 70 | Head | — | Portugal |
| 56 | Adalie Silva | 62 | wife | — | Portugal |
| 57 | Dorothy Silva | 23 | daughter | Nonworker | Calif. |
| 58 | Lydia Silva | 21 | daughter | Sales Girl | Calif. |
| 59 | Joyce Silva | 9 | daughter | — | Calif. |
| 60 | Alfred Valadon | 32 | son-in-law | Repair Man | Calif. |
| 61 | Evelyn Valadon | 27 | daughter | — | Portugal |
| 62 | Lovelene Valadon | 7 | daughter | — | Calif. |
| 63 | Tony Vuckovich | 63 | Head | — | Yugoslavia |
| 64 | Lucy Vuckovich | 60 | wife | — | Yugoslavia |
| 65 | Lena Vuckovich | 31 | daughter | Secretary | Calif. |
| 66 | Dorothy Vuckovich | 23 | daughter | Elevator Girl | Calif. |
| 67 | Mike Vuckovich | 22 | son | Car Cleaner | Calif. |
| 68 | Florence Vuckovich | 21 | daughter | Mailing Girl | Calif. |
| 69 | Tony Jr. Vuckovich | 20 | son | Non Worker | Calif. |
| 70 | Millie Vuckovich | 18 | daughter | — | Calif. |
| 71 | Marion Romany | 10 | grand daughter | — | Calif. |
| 72 | Robert Deathel | 73 | Head | — | West Indies |
| 73 | Mary Deathel | 66 | wife | — | West Indies |
| 74 | George Deathel | 17 | son | — | Calif. |
| 75 | Walterina Hypolite | 40 | sister-in-law | Housemaid | West Indies |
| 76 | Louis Martins | 64 | Head | — | Italy |
| 77 | Angelina Martins | 62 | wife | Presser | Italy |
| 78 | Margaret Martins | 27 | daughter | — | Canada (Eng) |
| 79 | Edward Benkiser | 28 | son-in-law | Car Man | Calif. |
| 80 | Olga Benkiser | 28 | daughter | — | Calif. |
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)