JP
John Perry — 1940 US Census Record
Model Tree available1940 United States Federal Census · Alameda-County, California
Our Model Tree links this John Perry across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed), with identified parents Louis & Carmelina — first a son (b.~1913), then head of a 8-person household.
Age 27
b. ~1913
Male
Son
Born: Portugal
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Perry |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Portugal |
| 1935 Residence (City) | San Leandro |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | driller |
| Industry | stone factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1456 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Occupation | Driller |
| Township / Ward | San Leandro |
| Est. Birth Year | ~1913 |
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 |
|---|---|---|---|---|
| Zina Perry | Daughter | — | 18 | ~1922 |
| Lorraine Perry | Daughter | — | 7 | ~1933 |
| Florence Perry | Daughter | — | 8 | ~1932 |
| Thomas Perry | Head | — | 52 | ~1888 |
| Tony Perry | Son | — | 17 | ~1923 |
| John Perry | Son | — | 27 | ~1913 |
| Peter Perry | Son | — | 20 | ~1920 |
| Thelma Perry | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Alameda, California
Son, age 9
Alameda, California · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Portugal |
| Year of Immigration | 1912 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Alameda, California
Son, age 18
Alameda, California · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Portugal |
| Naturalization Status | Alien |
| Year of Immigration | 1914 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Farm hand |
| Industry | Ranch |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Veteran | No |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Alameda-County, California
Son, age 27
Alameda-County, California · implied b. ~1913 — 8 household members
| Surname | Perry |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Portugal |
| 1935 Residence (City) | San Leandro |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Naturalized |
| Occupation | driller |
| Industry | stone factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1456 |
| Highest Grade | No 6 |
| 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 Perry across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Perry (~0.92 confidence) and mother Carmelina Perry (~0.92 confidence) and father Thomas Perry (~0.92 confidence) and mother Thelma Perry (~0.92 confidence) and mother Eutibra Perry (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Perry
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Carmelina Perry
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Thomas Perry
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Thelma Perry
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Eutibra Perry
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Perry
Son · 1940 · age 27 · b. ~1913 · California
★ You are viewing this record
Sibling
Lorraine Perry
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Perry
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Tony Perry
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Perry
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Zina Perry
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
37 people indexed on this census page (nara:1940:m-t0627-00184-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ida Joaquin | 12 | granddaughter | — | California |
| 43 | Joseph Coit | 66 | head | Sealer | Portugal |
| 44 | William Manke | 30 | head | Packer | California |
| 45 | Bernice Manke | 27 | wife | Packer | Portugal |
| 46 | Anthony Torres | 31 | head | Farm Hand | Portugal |
| 47 | Margaret Torres | 34 | wife | Washer | California |
| 48 | John Torres | 14 | son | — | California |
| 49 | Manuel Torres | 10 | son | — | California |
| 50 | Joseph A. Peres | 35 | head | Construction Worker | Spain |
| 51 | Anita Peres | 29 | wife | — | California |
| 52 | Jacqueline Peres | 10 | daughter | — | California |
| 53 | Joann Peres | 1 | daughter | — | California |
| 54 | John Fernandez | 31 | head | Cook | Hawaii |
| 55 | Leona Fernandez | 22 | wife | — | California |
| 56 | Jane Fernandez | 4 | daughter | — | California |
| 57 | David Spalding | 37 | head | — | California |
| 58 | Mary Spalding | 47 | wife | Helper For X-Ray Technician | Hawaii |
| 60 | Bella Escorse | 76 | head | — | Portugal |
| 61 | Antone Escorse | 42 | son | Bar Keeper | Hawaii |
| 62 | Christine Escorse | 48 | daughter | — | Hawaii |
| 63 | Floyd Raymond | 25 | grandson | Washer | California |
| 64 | Elaine Escorse | 16 | granddaughter | — | California |
| 65 | Charles Warner | 49 | head | Compressor Operator | California |
| 66 | Mary Warner | 56 | wife | — | California |
| 67 | Thomas Perry | 52 | head | Laborer | Portugal |
| 68 | Thelma Perry | 50 | wife | — | Portugal |
| 69 | John Perry THIS PERSON | 27 | son | Driller | Portugal |
| 70 | Peter Perry | 20 | son | Checker | California |
| 71 | Zina Perry | 18 | daughter | Canner | California |
| 72 | Tony Perry | 17 | son | — | California |
| 73 | Florence Perry | 8 | daughter | — | California |
| 74 | Lorraine Perry | 7 | daughter | — | California |
| 75 | Frank Espialay | 26 | head | Machinist'S Helper | Hawaii |
| 76 | Beatrice Espialay | 22 | wife | Canner | Hawaii |
| 77 | Mary Espialay | 2 | daughter | — | California |
| 79 | Robert Thompson | 45 | head | Truck Driver | California |
| 80 | Bernadette Thompson | 34 | wife | — | California |
Pedigree Summary
John + 5 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)