JD
James Dempsey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this James Dempsey across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Louise — first a son (b.~1908), then head of a 8-person household.
Age 32
b. ~1908
Male
Son
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Dempsey |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 420 |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Chauffeur |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1908 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Louise Abell | Head | — | 66 | ~1874 |
| Edwin Dempsey | Son | — | 6 | ~1934 |
| Jeanette Abell | Daughter | — | 24 | ~1916 |
| Regina Dempsey | Daughter | — | 3 | ~1937 |
| Eva Dempsey | Daughter | — | 34 | ~1906 |
| Muriel Marshall | Daughter | — | 16 | ~1924 |
| James Dempsey | Son | — | 32 | ~1908 |
| Violet Marshall | Daughter | — | 37 | ~1903 |
Census Appearances
1920
Baltimore, Maryland
Other, age 12
Baltimore, Maryland · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | James R. |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Other, age 23
Baltimore, Maryland · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | James |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 32
Baltimore-City-County, Maryland · implied b. ~1908 — 8 household members
| Surname | Dempsey |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 420 |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 James Dempsey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Louise Abell (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Louise Abell
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Dempsey
Son · 1940 · age 32 · b. ~1908 · Maryland
★ You are viewing this record
Sibling
Edwin Dempsey
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Abell
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Regina Dempsey
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Marshall
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eva Dempsey
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Muriel Marshall
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01511-00408)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Abraham Harrison | 55 | Head | Fruit Dealer | Lithuania |
| 2 | Sarah Harrison | 50 | Wife | — | Russia |
| 3 | Dorothy Harrison | 23 | Daughter | Secretary | Maryland |
| 4 | Harry Harrison | 22 | Son | Chauffeur | Maryland |
| 5 | Alex Harrison | 20 | Son | Chauffeur | Maryland |
| 6 | Charles Harrison | 19 | Son | — | Maryland |
| 7 | Lillian Harrison | 17 | Daughter | — | Maryland |
| 8 | Michael Levin | 50 | Head | Shoe Maker | Russia |
| 9 | Fiona Levin | 50 | Wife | — | Russia |
| 10 | Jean Levin | 25 | Daughter | Sales Girl | Maryland |
| 11 | Julius Levin | 24 | Son | Cutter | Maryland |
| 12 | Myer Levin | 22 | Son | Insurance | Maryland |
| 14 | Nathan Abromvitz | 59 | Head | Barber | Roumania |
| 15 | Fannie Abromvitz | 57 | Wife | — | Roumania |
| 16 | Hannah Abromvitz | 25 | Daughter | Sales Girl | Maryland |
| 17 | Oscar Abromvitz | 24 | Son | Photographer | Maryland |
| 18 | Louise Abell | 66 | Head | — | Maryland |
| 19 | Jeanette Abell | 24 | Daughter | Fruit Stand | Maryland |
| 20 | Violet Marshall | 37 | Daughter | Seamstress | Maryland |
| 21 | Muriel Marshall | 16 | Daughter | — | Maryland |
| 22 | James Dempsey THIS PERSON | 32 | Son | Chauffeur | Maryland |
| 23 | Eva Dempsey | 34 | Daughter | — | Maryland |
| 24 | Edwin Dempsey | 6 | Son | — | Maryland |
| 25 | Regina Dempsey | 3 | Daughter | — | Maryland |
| 26 | Nathan Handberger | 34 | Head | Collector | Poland |
| 27 | Katie Handberger | 34 | Wife | — | Maryland |
| 28 | Joel Handberger | 13 | Son | — | Maryland |
| 29 | Melvin Handberger | 10 | Son | — | Maryland |
| 30 | Jerry Handberger | 7 | Son | — | Maryland |
| 31 | Stanley Handberger | 6 | Son | — | Maryland |
| 32 | Phillip Handberger | 3 | Son | — | Maryland |
| 33 | Louis Jewel | 64 | Head | — | Russia |
| 34 | Lena Jewel | 64 | Wife | — | Russia |
| 35 | Anna Yankoff | 59 | Head | — | Latvia |
| 36 | Rose Yankoff | 31 | Daughter | Secretary | Maryland |
| 37 | Lottie Yankoff | 21 | Daughter | Salesman | Maryland |
| 38 | Samuel Levin | 31 | Son | Haberdashery | Maryland |
| 39 | Pearl Levin | 30 | Daughter | — | Maryland |
| 40 | Judith Levin | 5 | Daughter | — | Maryland |
Pedigree Summary
James + 6 siblings
Gen 1 · 1 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)