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John Silva — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Luis-Obispo-County, California
Our Model Tree links this John Silva across the 1920, 1930 and 1940 US Censuses in San-Luis-Obispo-County, California (XGBoost, ~Confirmed) — first a head (b.~1898), then head of a 7-person household.
Age 42
b. ~1898
Male
Head
Born: Azore Islands
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Luis-Obispo-County, California |
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Azore Islands |
| 1935 Residence (City) | Cayucos |
| 1935 Residence (County) | San Luis Obispo |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farm Carpenter |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 52 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | azore islands |
| Occupation | Farm Carpenter |
| Township / Ward | Cayucos |
| Est. Birth Year | ~1898 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mildred Silva | Daughter | — | 13 | ~1927 |
| Alfred Silva | Son | — | 16 | ~1924 |
| Manuel Silva | Son | — | 14 | ~1926 |
| Henry Silva | Son | — | 17 | ~1923 |
| John Silva | Son | — | 18 | ~1922 |
| John Silva | Head | — | 42 | ~1898 |
| Rose Silva | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Shasta, California
Other, age 25
Shasta, California · implied b. ~1895 — 25 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Azore Islands |
| Father's Birthplace | Azore Islands |
| Mother's Birthplace | Azore Islands |
| Occupation | none |
| Class of Worker | 1908 |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Year of Naturalization | 1917 |
| Birthplace (normalized) | azore islands |
1930
Tulare, California
Head, age 33
Tulare, California · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Silva |
| Given Name | Joe N |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Azore Islands |
| Naturalization Status | Alien |
| Year of Immigration | 1914 |
| Age at First Marriage | 18 |
| Father's Birthplace | Azore Islands |
| Mother's Birthplace | Azore Islands |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | No |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Birthplace (normalized) | azore islands |
1940
San-Luis-Obispo-County, California
Head, age 42
San-Luis-Obispo-County, California · implied b. ~1898 — 7 household members
| Surname | Silva |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Azore Islands |
| 1935 Residence (City) | Cayucos |
| 1935 Residence (County) | San Luis Obispo |
| Naturalization Status | Naturalized |
| Occupation | Farm Carpenter |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 52 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | azore islands |
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 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Silva
Head · 1940 · age 42 · b. ~1898 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Luis-Obispo-County, California
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1940 US Federal Census — San-Luis-Obispo-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00328-00286)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Silva THIS PERSON | 42 | Head | Farm Carpenter | Azore Islands |
| 2 | Rose Silva | 44 | Wife | — | California |
| 3 | John Silva | 18 | Son | — | California |
| 4 | Henry Silva | 17 | Son | — | California |
| 5 | Alfred Silva | 16 | Son | — | California |
| 6 | Manuel Silva | 14 | Son | — | California |
| 7 | Mildred Silva | 13 | Daughter | — | California |
| 8 | Albert Monett | 35 | Head | Driver | Colorado |
| 9 | Melita Monett | 38 | Wife | — | France |
| 10 | William Humphrey | 16 | Son | — | California |
| 11 | Carl D. Baker | 48 | Head | Baker | Nebraska |
| 12 | Inola Baker | 34 | Wife | — | Louisiana |
| 13 | John Azerado | 41 | Head | Laborer | Azore Islands |
| 14 | Aldina Azerado | 30 | Wife | — | California |
| 15 | Mary Azerado | 16 | Daughter | — | California |
| 16 | John Azerado | 15 | Son | — | California |
| 17 | Ida Azerado | 13 | Daughter | — | California |
| 18 | Madaline Azerado | 11 | Daughter | — | California |
| 19 | Anthony Azerado | 8 | Son | — | California |
| 20 | Roy Sprague | 39 | Head | Store Salesman | Pennsylvania |
| 21 | Nellie Sprague | 34 | Wife | — | Arizona |
| 22 | Florence Sprague | 13 | Daughter | — | California |
| 23 | Nellie Sprague | 12 | Daughter | — | California |
| 24 | Helen Sprague | 10 | Daughter | — | California |
| 25 | William Sprague | 4 | Son | — | California |
| 26 | George Mcbee | 58 | Head | Electrician | Virginia |
| 27 | May Mcbee | 53 | Wife | — | Minnesota |
| 28 | Hubert Landice | 53 | Head | Carpenter | Missouri |
| 29 | Fannie Landice | 53 | Wife | — | Missouri |
| 30 | Selene Landice | 25 | Daughter | — | California |
| 31 | Kershaw Landice | 19 | Son | — | California |
| 32 | Lucille Landice | 17 | Daughter | — | California |
| 33 | Betty Ann Landice | 14 | Daughter | — | California |
| 34 | Jesse Carroll | 37 | Head | Gardner | Texas |
| 35 | Mary Lee Carroll | 35 | Wife | — | Missouri |
| 36 | Molly E. Carroll | 16 | Daughter | — | California |
| 37 | Margaret Carroll | 14 | Daughter | — | California |
| 38 | Jessie W. Carroll | 13 | Son | — | California |
| 39 | Nancy L. Carroll | 8 | Daughter | — | California |
| 40 | Clifford W. Carroll | 7 | Son | — | 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)