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John Dempsey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bexar-County, Texas
Our Model Tree links this John Dempsey across the 1930 and 1940 US Censuses in Bexar-County, Texas (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bexar-County, Texas |
| Surname | Dempsey |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | San Antonio City |
| 1935 Residence (County) | Bexar |
| Additional Details | |
| Occupation | Elevator Boy |
| Industry | Off Bldg |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 630 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Elevator Boy |
| Township / Ward | San Antonio City |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Thomas Dempsey | Son | — | 22 | ~1918 |
| John Dempsey | Son | — | 20 | ~1920 |
| Lydia Dempsey | Spouse | — | 54 | ~1886 |
| Hazel Dempsey | Daughter | — | 15 | ~1925 |
| Bessie Dempsey | Daughter | — | 25 | ~1915 |
| Mary Dempsey | Daughter | — | 18 | ~1922 |
| Thomas Dempsey | Head | — | 58 | ~1882 |
Census Appearances
1930
Bexar, Texas
Son, age 10
Bexar, Texas · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Bexar-County, Texas
Son, age 20
Bexar-County, Texas · implied b. ~1920 — 7 household members
| Surname | Dempsey |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | San Antonio City |
| 1935 Residence (County) | Bexar |
| Occupation | Elevator Boy |
| Industry | Off Bldg |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 630 |
| Highest Grade | H 4 |
| 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 Dempsey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dempsey
Son · 1940 · age 20 · b. ~1920 · Texas
★ You are viewing this record
Sibling
Hazel Dempsey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dempsey
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Dempsey
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bessie Dempsey
Sibling · 1940 · age 25
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 — Bexar-County, Texas
Open full size
1940 US Federal Census — Bexar-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04202-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J Krizek | 10 | Head | — | Ohio |
| 2 | Rose Krizek | 9 | Daughter | — | Texas |
| 3 | Theresa Krizek | 0 | Daughter | — | Texas |
| 4 | Thomas J Dempsey | 58 | Head | Switchman | Penn |
| 5 | Lydia Dempsey | 54 | Wife | — | Texas |
| 6 | Bessie Dempsey | 25 | Daughter | Clerk | Texas |
| 7 | Thomas J Dempsey | 22 | Son | Elevator Boy | Texas |
| 8 | John E Dempsey THIS PERSON | 20 | Son | Elevator Boy | Texas |
| 9 | Mary L Dempsey | 18 | Daughter | — | Texas |
| 10 | Hazel A Dempsey | 15 | Daughter | — | Texas |
| 11 | Victor F Braun | 43 | Head | Barber | Texas |
| 12 | Hattie Braun | 43 | Wife | Clerk | Texas |
| 13 | Vivian Braun | 17 | Daughter | — | Texas |
| 14 | Frank Trawalter | 68 | Father | — | Texas |
| 15 | Joaquin Morales | 36 | Head | Waiter | Mexico |
| 16 | Carmen Morales | 37 | Wife | — | Mexico |
| 17 | Carmen Morales | 12 | Daughter | — | Texas |
| 18 | Gilberto Morales | 10 | Son | — | Texas |
| 19 | Maria Morales | 2 | Daughter | — | Texas |
| 20 | Petra B Morales | 57 | Mother | — | Mexico |
| 21 | Dora Trevino | 33 | Sister | Saleslady | Texas |
| 22 | Carmen Trevino | 14 | Niece | — | Texas |
| 23 | Edward Trevino | 13 | Nephew | — | Texas |
| 24 | Roland Trevino | 12 | Nephew | — | Texas |
| 25 | Rudolph Martinez | 22 | Brother | New Helper | Texas |
| 26 | Elida Martinez | 18 | Sister | — | Texas |
| 27 | Juan B Olivo | 37 | Head | Musician | Texas |
| 28 | Anita Olivo | 34 | Wife | — | Texas |
| 29 | Maria S Olivo | 2 | Daughter | — | Texas |
| 30 | Joe Sifuentes | 37 | Head | Garage Helper | Texas |
| 31 | Antonia Sifuentes | 31 | Wife | — | Texas |
| 32 | Ernestine Sifuentes | 5 | Daughter | — | Texas |
| 33 | Ella Sifuentes | 4 | Daughter | — | Texas |
| 34 | Jesus Reyes | 40 | Head | Mechanic | Mexico |
| 35 | Maria Reyes | 34 | Wife | — | Mexico |
| 36 | Francisco Reyes | 12 | Son | — | Texas |
| 37 | Carmen Reyes | 10 | Daughter | — | Texas |
| 38 | Nellie Reyes | 8 | Daughter | — | Texas |
| 39 | Jesus Jr. Reyes | 6 | Son | — | Texas |
| 40 | Carlos Reyes | 3 | Son | — | Texas |
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)