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 spouse (b.~1891), then head of a 4-person household.
Age 49
b. ~1891
Female
Spouse
Born: Hawaii
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Silva |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Hawaii |
| 1935 Residence (City) | Alvarado |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Laborer |
| Industry | Whl Salt Mfg Co |
| Class of Worker | PW |
| Hours Worked | 46 |
| Income (1939) | 988 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
| Occupation | Laborer |
| Township / Ward | Alvarado |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Frank Silva | Head | — | 46 | ~1894 |
| Leonard Silva | Son | — | 20 | ~1920 |
| Warren Silva | Son | — | 18 | ~1922 |
| Mary Silva | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Alameda, California
Spouse, age 28
Alameda, California · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Hawaii |
| Father's Birthplace | Hawaii |
| Mother's Birthplace | Hawaii |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
1930
Alameda, California
Spouse, age 42
Alameda, California · implied b. ~1888 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Hawaii |
| Age at First Marriage | 24 |
| Father's Birthplace | Hawaii |
| Mother's Birthplace | Hawaii |
| Can Read/Write | Yes |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
1940
Alameda-County, California
Spouse, age 49
Alameda-County, California · implied b. ~1891 — 4 household members
| Surname | Silva |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Hawaii |
| 1935 Residence (City) | Alvarado |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Alien |
| Occupation | Laborer |
| Industry | Whl Salt Mfg Co |
| Class of Worker | PW |
| Hours Worked | 46 |
| Income (1939) | 988 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
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 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Silva
Spouse · 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 — 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-t0627-00191-00541)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Menezes | 58 | Head | Barber | Azores |
| 2 | Isabel Menezes | 45 | Wife | — | California |
| 3 | Alice Menezes | 25 | Daughter | — | California |
| 4 | Alberta Menezes | 15 | Daughter | Postal Clerk | California |
| 5 | Manuel Santos | 70 | Head | — | Portugal |
| 6 | Mary Santos | 67 | Wife | — | Azores |
| 7 | Amelia Contra | 44 | Head | Proprietor | Old Mexico |
| 8 | Petra Contra | 41 | Wife | Cook | Old Mexico |
| 9 | Daniel Hernandez | 22 | Son | Cook | Old Mexico |
| 10 | Joe Hernandez | 19 | Step-son | Cook | California |
| 11 | Tony Hernandez | 16 | Step-son | Cook | California |
| 12 | Rudolph Durant | 20 | Nephew | Dish Washer | California |
| 13 | Joe Priego | 43 | Head | Owner | Spain |
| 14 | Victoria Priego | 39 | Wife | Help Owner | Spain |
| 15 | Manuel Priego | 14 | Son | Delivery Boy | California |
| 16 | David Priego | 11 | Son | — | California |
| 17 | Lue Into Block | None | Boarder | — | — |
| 18 | Manuel Rosa | 33 | Head | Laborer | California |
| 19 | Delinda Rosa | 27 | Wife | — | Azores |
| 20 | Eleanor Rosa | 9 | Daughter | — | California |
| 21 | Antonio Correia | 51 | Father in law | — | Azores |
| 22 | Frank Jr Silva | 46 | Head | Laborer | California |
| 23 | Mary Silva THIS PERSON | 49 | Wife | Laborer | Hawaii |
| 24 | Leonard Silva | 20 | Son | — | California |
| 25 | Warren Silva | 18 | Son | Laborer | California |
| 26 | Joe Russola | 47 | Head | — | Italy |
| 27 | Mary Russola | 45 | Wife | Laborer | Italy |
| 28 | George Perry | 35 | Head | — | California |
| 29 | Marie Perry | 34 | Wife | — | California |
| 30 | Gregory Perry | 30 | Head | Laborer | California |
| 31 | Grace Perry | 31 | Wife | — | California |
| 32 | Marvin Perry | 6 | Son | — | California |
| 33 | Manuel Agonido | 44 | Head | Laborer | California |
| 34 | Ethel Agonido | 39 | Wife | — | California |
| 35 | Irma Agonido | 17 | Daughter | — | California |
| 36 | Domingo Kibers | 68 | Head | Farming | Western Islands |
| 37 | Mary Kibers | 62 | Wife | Farmer | Azores |
| 38 | Lulu Berton Court | 34 | Daughter | — | California |
| 39 | John Berton Court | 41 | Son in law | Dentist | Hawaii |
| 40 | Norma Berton Court | 11 | Grand daughter | — | 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)