MS
Mary Silva — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Mary Silva across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 3-person household.
Age 50
b. ~1890
Female
Head
Born: Azores Island
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Silva |
| Given Name | Mary C |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Azores Island |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Same House |
| Birthplace (normalized) | azores island |
| Township / Ward | Oakland |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frances Silva | Daughter | — | 28 | ~1912 |
| Mary Silva | Head | — | 50 | ~1890 |
| Michael Silva | Son | — | 16 | ~1924 |
Census Appearances
1920
Santa Barbara, …
Spouse, age 22
Santa Barbara, California · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Azores Island |
| Year of Immigration | 1912 |
| Naturalization Status | Alien |
| Father's Birthplace | Azores Island |
| Mother's Birthplace | Azores Island |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Mother Tongue | Portuguese |
| Birthplace (normalized) | azores island |
1930
Alameda, California
Spouse, age 35
Alameda, California · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Azores Island |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 15 |
| Father's Birthplace | Azores Island |
| Mother's Birthplace | Azores Island |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Birthplace (normalized) | azores island |
1940
Alameda-County, California
Head, age 50
Alameda-County, California · implied b. ~1890 — 3 household members
| Surname | Silva |
| Given Name | Mary C |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Azores Island |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Alien |
| Highest Grade | No 2 |
| 1935 Residence | Same House |
| Birthplace (normalized) | azores island |
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 Silva across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Silva
Head · 1940 · age 50 · b. ~1890 · 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
35 people indexed on this census page (nara:1940:m-t0627-00434-00273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Caverly | 44 | Head | Tile Worker | Ireland |
| 42 | Agatha Caverly | 36 | Wife | Nurse | California |
| 43 | Jimmy Caverly | 6 | Son | — | California |
| 44 | Sheila Caverly | 4 | Daughter | — | California |
| 45 | Richard Caverly | 2 | Son | — | California |
| 46 | Angela Caverly | 0 | Daughter | — | California |
| 47 | Gordon Griffin | 40 | Head | Labor | Oklahoma |
| 48 | Marie Griffin | 36 | Wife | Packer | Arkansas |
| 49 | Joe Griffin | 16 | Son | — | Arkansas |
| 50 | John Jr Griffin | 8 | Son | — | Oklahoma |
| 51 | Loretta Griffin | 2 | Daughter | — | California |
| 52 | Anita | 70 | Lodger | — | California |
| 53 | Mary C Silva THIS PERSON | 50 | Head | — | Azores Island |
| 54 | Frances Silva | 28 | Daughter | Stenographer | California |
| 55 | Michael Silva | 16 | Son | Newsboy | California |
| 56 | Mary Harrington | 65 | Head | — | Canada |
| 57 | Joseph F Harrington | 68 | Brother | Manager | Canada |
| 58 | Dora Mcconnell | 48 | Head | Owner | Canada |
| 59 | Harold Mcconnell | 46 | Husband | Office | Canada |
| 60 | Ruby Mcconnell | 10 | Daughter | — | California |
| 61 | Donald Mcconnell | 10 | Son | — | California |
| 62 | John W Aylward | 49 | Head | — | Canada |
| 63 | Pearl Aylward | 42 | Wife | Salesman | Canada |
| 64 | Mary Carriani | 74 | Head | — | California |
| 65 | Robert May | 48 | Head | Electrician | Oregon |
| 66 | Gladys M May | 51 | Wife | — | Australia |
| 67 | Louis Joubert | 81 | Head | — | Louisiana |
| 68 | Provost Anne Joubert | 44 | Daughter | — | Louisiana |
| 69 | Hans W Schubert | 31 | Head | Mechanic | Nebraska |
| 70 | Vera Schubert | 30 | Wife | — | California |
| 71 | Lana Schubert | 1 | Son | — | California |
| 72 | Harold Mc Crea | 38 | Head | Auditor | California |
| 73 | Edith Mc Crea | 38 | Wife | — | California |
| 74 | Marilyn Mc Crea | 6 | Daughter | — | California |
| 75 | Mary Bassett | 70 | Mother | — | Wisconsin |
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)