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John John — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this John John across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1909), then head of a 12-person household.
Age 31
b. ~1909
Male
Son
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | John |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Presser |
| Industry | Dry Cleaning |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Presser |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1909 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Florence Montana | Daughter | — | 16 | ~1924 |
| Nellie Montana | Daughter | — | 12 | ~1928 |
| Barbara Montana | Daughter | — | 7 | ~1933 |
| Anna John | Daughter | — | 31 | ~1909 |
| Eloine Montana | Daughter | — | 14 | ~1926 |
| George Montana | Head | — | 36 | ~1904 |
| Adolf Du Clusan | Other | — | 5 | ~1935 |
| John John | Son | — | 31 | ~1909 |
| Philip Montana | Son | — | 3 | ~1937 |
| Richard Montana | Son | — | 10 | ~1930 |
| Ernest Montana | Son | — | 13 | ~1927 |
| Colosne Montana | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Los Angeles, …
Son, age 20
Los Angeles, California · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johns |
| Given Name | John G. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Colorado |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Los-Angeles-County, California
Son, age 31
Los-Angeles-County, California · implied b. ~1909 — 12 household members
| Surname | John |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Presser |
| Industry | Dry Cleaning |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 John across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John John
Son · 1940 · age 31 · b. ~1909 · California
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Sibling
Philip Montana
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eloine Montana
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna John
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Montana
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Montana
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Montana
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Montana
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Montana
Sibling · 1940 · age 16
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
17 people indexed on this census page (nara:1940:m-t0627-00384-00441)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emiterio Ranjel | 65 | Lodger | Painter | Mexico |
| 2 | Jose A. Espinoza | 44 | Head | Housekeeper | Mexico |
| 3 | Lupe Espinoza | 51 | Wife | — | Mexico |
| 4 | Frank L. Caulkins | 78 | Head | — | Connecticut |
| 5 | George U. Montana | 36 | Head | Truck Driver | New Mexico |
| 6 | Colosne | Colosue Montana | 34 | Wife | — | New Mexico |
| 7 | Florence Montana | 16 | Daughter | — | California |
| 8 | Eloine Montana | 14 | Daughter | — | California |
| 9 | Ernest Montana | 13 | Son | — | California |
| 10 | Nellie Montana | 12 | Daughter | — | California |
| 11 | Richard Montana | 10 | Son | — | California |
| 12 | Barbara Montana | 7 | Daughter | — | California |
| 13 | Philip Montana | 3 | Son | — | California |
| 14 | Adolf Jr. Du Clusan | 5 | Grandson | — | California |
| 15 | John F. John THIS PERSON | 31 | Son | Presser | Texas |
| 16 | Anna John | 31 | Daughter | Labor | Texas |
| 17 | Phil F. Smigel | 33 | Head | — | Mississippi |
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)