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John Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this John Dennis across the 1920, 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 3-person household.
Age 75
b. ~1865
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Dennis |
| Given Name | John B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | San Diego |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Occupation | No No No Ot |
| Industry | Ot |
| Class of Worker | Ot |
| Hours Worked | 8 |
| Highest Grade | Hs 4 |
| 1935 Residence | California |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | No No No Ot |
| Township / Ward | Pine Valley |
| Est. Birth Year | ~1865 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Georgiana Dennis | Spouse | — | 66 | ~1874 |
| John Dennis | Head | — | 75 | ~1865 |
| Elizabeth Dennis | Daughter | — | 35 | ~1905 |
Census Appearances
1920
San Diego, …
Head, age 54
San Diego, California · implied b. ~1866 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Commercial |
| Industry | Hardware |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
San Diego, …
Head, age 64
San Diego, California · implied b. ~1866 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 27 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Occupation | Salesman |
| Industry | Hardware |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 75.00 |
| Radio Set | R |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
San-Diego-County, California
Head, age 75
San-Diego-County, California · implied b. ~1865 — 3 household members
| Surname | Dennis |
| Given Name | John B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | San Diego |
| 1935 Residence (County) | San Diego |
| Occupation | No No No Ot |
| Industry | Ot |
| Class of Worker | Ot |
| Hours Worked | 8 |
| Highest Grade | Hs 4 |
| 1935 Residence | California |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Dennis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dennis
Head · 1940 · age 75 · b. ~1865 · 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-t0627-00295-00176)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie E Yorhees | Vorhees | 3 | daughter | — | Wyoming |
| 42 | Darlena R Yorhees | Vorhees | 2 | daughter | — | Wyoming |
| 43 | Edward J Mulligan | 52 | Head | No No No U | Wisconsin |
| 44 | Catherine W Mulligan | 49 | wife | No No No H | Colorado |
| 45 | John B Dennis THIS PERSON | 75 | Head | No No No Ot | New Jersey |
| 46 | Georgiana Dennis | 66 | wife | No No No H | Illinois |
| 47 | Elizabeth J Dennis | 35 | daughter | No No No Ot | California |
| 48 | Benjamin F Moore | 51 | Head | Miner | California |
| 49 | Mable K Moore | 61 | wife | No No No H | California |
| 50 | Leonard A Bradley | 29 | Head | Foreman | Colorado |
| 51 | Catherine Bradley | 24 | wife | No No No H | Pennsylvania |
| 52 | Martha Lee Bradley | 1 | daughter | — | California |
| 53 | Mark T Ratcliffe | 42 | Head | Miner | South Dakota |
| 54 | Margie L Ratcliffe | 32 | wife | No No No H | California |
| 55 | Merle T Jr Ratcliffe | 15 | son | No No No S | California |
| 56 | Carmelita A Ratcliffe | 12 | daughter | — | California |
| 57 | Mable Sherman | 48 | Head | Nurse Private | Iowa |
| 58 | Fredrick Humphries | 57 | Head | No No No Ot | England |
| 59 | Tilda C Humphries | 47 | wife | No No No H | So Dakota |
| 60 | John F Humphries | 15 | son | — | California |
| 61 | Fulton V Amadon | 76 | Head | No No No Ot | New York |
| 62 | Mollie Amadon | 55 | wife | No No No H | Sweden |
| 63 | Fredrick G Peck | 72 | Head | No No No Ot | England |
| 64 | Edward J Orban | 38 | lodger | Foreman | Texas |
| 65 | Clifford J O'Marr | 51 | Head | Equipment Operator | Montana |
| 66 | T Helen O'Marr | 43 | wife | Janitor | Colorado |
| 67 | John S O'Marr | 19 | son | No No No S | California |
| 68 | Helen A O'Marr | 11 | daughter | — | California |
| 69 | Edith K O'Marr | 10 | daughter | — | California |
| 70 | Albert Gokenbach | 52 | Head | No No No Ot | Michigan |
| 71 | Hazel M Gokenbach | 39 | wife | No No No H | Kansas |
| 72 | Guy F Fisk | 39 | Head | Merchant | Oregon |
| 73 | Dorthy G Fisk | 33 | wife | Merchant | California |
| 74 | Helen Darlene Fisk | 2 | daughter | — | California |
| 75 | Roy W Pogue | 31 | Head | Clerk | Nebraska |
| 76 | Dorthy M Pogue | 32 | wife | No No No H | New York |
| 77 | Diane A Pogue | 7 | daughter | — | California |
| 78 | Patricia A Pogue | 5 | daughter | — | California |
| 79 | Arthur D Towne | 53 | Head | Caretaker | New Hampshire |
| 80 | Phillip G Hall | 56 | Head | Caretaker | England |
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)