JG
John Graham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this John Graham across the 1920, 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 7-person household.
Age 48
b. ~1892
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Graham |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Occupation | Superintendent |
| Industry | Neon Signs |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1564 |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Superintendent |
| Township / Ward | San Diego City |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Margaret Tellin | Daughter | — | 25 | ~1915 |
| Margaret Graham | Daughter | — | 18 | ~1922 |
| John Graham | Head | — | 48 | ~1892 |
| Raymond Tellin | Other | — | 32 | ~1908 |
| Raymond Tellin | Other | — | 1 | ~1939 |
| Ida Simpson | Other | — | 27 | ~1913 |
| Sadie Graham | Spouse | — | 44 | ~1896 |
Census Appearances
1920
San Diego, …
Head, age 28
San Diego, California · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | John W |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Kansas |
| Occupation | Electrician |
| Industry | Amusement Park |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
San Diego, …
Head, age 38
San Diego, California · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 22 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Kansas |
| Occupation | Electrician |
| Industry | Electric Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Radio Set | R |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
San-Diego-County, California
Head, age 48
San-Diego-County, California · implied b. ~1892 — 7 household members
| Surname | Graham |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Occupation | Superintendent |
| Industry | Neon Signs |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1564 |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Graham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Graham
Head · 1940 · age 48 · b. ~1892 · 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-Diego-County, California
Open full size
1940 US Federal Census — San-Diego-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00449-00514)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Manninga | 23 | Head | Switch Board | Oregon |
| 2 | Ward Mastick | 33 | Head | Stock Clerk | Oklahoma |
| 3 | Walter Mastick | 6 | Son | — | Kansas |
| 4 | Roy Mastick | 4 | Son | — | Kansas |
| 5 | Ray Blair | 38 | Head | Manager | Oklahoma |
| 6 | Ruthie Blair | 38 | Wife | — | Missouri |
| 7 | Elynore Blair | 16 | Daughter | — | California |
| 8 | Ray Jr. Blair | 14 | Son | — | California |
| 9 | Kempton Blair | 12 | Son | — | California |
| 10 | John W. Graham THIS PERSON | 48 | Head | Superintendent | Kansas |
| 11 | Sadie W. Graham | 44 | Wife | — | Texas |
| 12 | Margaret Graham | 18 | Daughter | — | Texas |
| 13 | Ida May Simpson | 27 | Lodger | Beauty Oper. | Nebraska |
| 14 | Margaret Tellin | 25 | Daughter | — | California |
| 15 | Raymond Tellin | 1 | Grandson | — | California |
| 16 | Raymond Carl Tellin | 32 | Son-in-law | Warrant Officer | Iowa |
| 17 | Kuntaro Kuratomie | 57 | Head | Shoe Mfg | Japan |
| 18 | Hide Kuratomie | 43 | Wife | — | Japan |
| 19 | Masako Kuratomie | 19 | Daughter | Stenographic | California |
| 20 | Ikuko Kuratomie | 16 | Daughter | — | California |
| 21 | Earl (X) Igo | 28 | Head | Butcher | Arizona |
| 22 | Marion Igo | 30 | Sister | Librarian | Arizona |
| 23 | Anna Igo | 50 | Mother | — | Texas |
| 24 | Jimmy Igo | 8 | Son | — | California |
| 25 | Le Roy Igo | 6 | Son | — | California |
| 26 | Head Cof Melvint W. | None | M | Local Laundry | — |
| 27 | Flora Cof | 62 | Wife | — | Kansas |
| 28 | Ben C. Irons | 35 | Lodger | Cook | South Dakota |
| 29 | Clyde Wood | 28 | Lodger | Pharmacist Mate | Illinois |
| 30 | Alice Wood | 22 | Lodger | Waitress | Kansas |
| 31 | Thomas Prendergast | 65 | Head | — | England |
| 32 | Margaret Prendergast | 67 | Wife | — | England |
| 33 | Margaret Prendergast | 25 | Daughter | Saleslady | Massachusetts |
| 34 | Charles Knefler | 25 | Head | Attendant | California |
| 35 | Catherine Knefler | 23 | Wife | — | California |
| 36 | Henry (X) Mergen | 43 | Head | Engineer | Nebraska |
| 37 | Ruthie Mergen | 50 | Wife | Chef | Switzerland |
| 38 | James Simson | 40 | Head | Waitress | Kansas |
| 39 | Edna Simson | 32 | Wife | — | Kansas |
| 40 | Joyce Simson | 12 | Daughter | — | Nebraska |
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)