JG
John Green — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this John Green across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents John & Helena — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Green |
| Given Name | John W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Graham |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Welder |
| Industry | Glass Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 464 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Welder |
| Township / Ward | Graham |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Barbara Green | Daughter | — | 19 | ~1921 |
| John Green | Head | — | 54 | ~1886 |
| John Green | Son | — | 22 | ~1918 |
| James Green | Son | — | 12 | ~1928 |
| Helena Green | Spouse | — | 55 | ~1885 |
Census Appearances
Son, age 2
Los Angeles, California · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Greene |
| Given Name | John W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Rhode Island |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 12
Los Angeles, California · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Green |
| Given Name | John W Jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Rhode Island |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 22
Los-Angeles-County, California · implied b. ~1918 — 5 household members
| Surname | Green |
| Given Name | John W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Graham |
| 1935 Residence (County) | Los Angeles |
| Occupation | Welder |
| Industry | Glass Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 464 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Green across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Green (~0.92 confidence) and mother Helena Green (~0.92 confidence) and father John Greene (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Green
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Helena Green
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
John Greene
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Green
Son · 1940 · age 22 · b. ~1918 · California
★ You are viewing this record
Sibling
Barbara Green
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Green
Sibling · 1940 · age 12
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
40 people indexed on this census page (nara:1940:m-t0627-00250-00184)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David H. Ostrander | 58 | Head | Lab. Carpenter | Kansas |
| 2 | Florence M. Ostrander | 47 | Wife | — | California |
| 3 | — | None | — | — | — |
| 4 | — | None | — | — | — |
| 5 | — | None | — | — | — |
| 6 | John D. Davis | 34 | Head | Roofing | Arkansas |
| 7 | Lucille Davis | 30 | Wife | — | Washington |
| 8 | Joann Davis | 9 | Daughter | — | California |
| 9 | Edna Davis | 6 | Daughter | — | California |
| 10 | John Davis | 4 | Son | — | California |
| 11 | Mary Lee Davis | 1 | Daughter | — | California |
| 12 | Charles E. Simmons | 37 | Head | Glass Bottle Machine Operator | Iowa |
| 13 | Nina May Simmons | 33 | Wife | — | Kansas |
| 14 | Bernice Simmons | 15 | Daughter | — | Washington |
| 15 | Paul Simmons | 14 | Son | — | Washington |
| 16 | Margaret Simmons | 12 | Daughter | — | Oklahoma |
| 17 | John W. Green | 54 | Head | Sample Man | Pennsylvania |
| 18 | Helena D. Green | 55 | Wife | — | Rhode Island |
| 19 | John W. Jr. Green THIS PERSON | 22 | Son | Welder | California |
| 20 | Barbara Green | 19 | Daughter | New Worker | California |
| 21 | James E. Green | 12 | Son | — | California |
| 22 | Louise Flowers | 69 | Head | — | Utah |
| 23 | Theodore L. Flowers | 46 | Son | — | Utah |
| 24 | — | None | — | — | — |
| 25 | Ernest H. Butler | 49 | Head | Manager | Connecticut |
| 26 | Lottie Butler | 46 | Wife | Helper | Virginia |
| 27 | Barbara Butler | 12 | Daughter | — | Washington D.C. |
| 28 | Harry R. Wild | 55 | Head | — | Iowa |
| 29 | Hugh H. Hahn | 59 | Head | Manager | New Jersey |
| 30 | Bessie S. Hahn | 55 | Wife | Helper | Kentucky |
| 31 | Floyd, Delma F. Hahn | 34 | Stepdaughter | — | California |
| 32 | Floyd, Yvonne L. Hahn | 17 | Granddaughter | — | California |
| 33 | Joseph L. Mehderson | 48 | Head | Welder | Nebraska |
| 34 | Edith Mehderson | 52 | Wife | — | Ohio |
| 35 | Florence Mehderson | 14 | Daughter | — | California |
| 36 | Joseph L. Jr. Mehderson | 10 | Son | — | California |
| 37 | Madge Sharp | 30 | Head | Fancy Packer | Iowa |
| 38 | Jacqueline Sharp | 11 | Daughter | — | California |
| 39 | Donald Sharp | 7 | Son | — | California |
| 40 | Maude Rosenberg | 59 | Mother | — | Iowa |
Related Census Records
Pedigree Summary
John + 2 siblings
Gen 1 · 3 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)