Patrick Dempsey

Patrick Dempsey

Dempsey in 2011, image via Joe Seer/

Birth Name: Patrick Galen Dempsey

Place of Birth: Lewiston, Maine, U.S.

Date of Birth: January 13, 1966

Ethnicity: German, English, Scottish, distant Irish, remote Swedish, possibly 5/2048 Native American

Patrick Dempsey is an American actor and race car driver.

Patrick is the son of Amanda and William Dempsey. His father was born William Allen Schlossnagle, and took the surname of his own stepfather, John W. Dempsey.

Patrick is married to hairstylist and makeup artist Jillian Fink, with whom he has three children.

Patrick’s paternal grandfather was Asa B. Schlossnagle (the son of Adam William Schlossnagle and Edith V. Friend). Asa was born in Maryland. Adam was born in Maryland, the son of German parents, Christoph Schlossnagle and Cooney Cunnigunda. Edith was the daughter of Isaiah Friend and Julia A. Casteel.

Patrick’s paternal grandmother was Jane Devonshire (the daughter of Benjamin Franklin Devonshire and Lydia Jennette “Nettie” Mattson). Jane was born in Maryland. Benjamin was the son of Benjamin Devonshire and Ellen Montgomery. Lydia was the daughter of James Mattson and Elizabeth Mary Carroll.

Patrick’s maternal grandfather was John Leroy Casson (the son of George Anthony Casson and Ida Butler). John was born in New York. George was born in Kendal, Westmorland, England. Ida was born in Massachusetts, the daughter of James B. Butler, who was born in London, England, and of Isabelle/Isabella Ross Ogilvie, whose parents were Canadian.

Patrick’s maternal grandmother was Margaret E. Grubb (the daughter of J. Wesley Grubb and Sarah/Sallie Jane Cass). Margaret was born in Pennsylvania. J. Wesley was the son of Amos Grubb and Charlotte Hook. Sarah was the daughter of George W. Cass and Amanda C. McVaugh.

Patrick’s matrilineal line can be traced to Silindra Clinda Hansell, who was born c. 1818, and to her mother, Mary Sehman.

Sources: Notations on Patrick’s father’s ancestry –

Genealogy of Patrick Dempsey (focusing on his father’s side) –

Patrick’s paternal great-grandparents, Adam William Schlossnagle and Edith V. Friend, on the 1920 U.S. Census –

Patrick’s paternal great-grandfather, Adam William Schlossnagle, on the 1880 U.S. Census –

Genealogy of Patrick’s paternal great-grandmother, Edith V. Friend (focusing on her father’s side) –

Patrick’s maternal grandfather, John Leroy Casson, on the 1910 U.S. Census –

Patrick’s maternal great-grandmother, Ida Butler, on the 1880 U.S. Census –

Marriage record of Patrick’s maternal great-great-grandparents, James B. Butler and Isabelle/Isabella Ross Ogilvie –

Patrick’s maternal grandmother, Margaret E. Grubb, on the 1920 U.S. Census –


Curious about ethnicity

30 Responses

  1. Mm394 says:

    He looks part Jewish. Like his nose when he was younger and his dark hair.

  2. Alice says:

    I’d say he has some Irish ancestry after all. Carroll is definitely an Irish surname and also most Butlers have Irish ancestry.

    • JackB says:

      Carroll is an Irish surname. Butler is in Ireland since an Anglo Norman invasion in the 12th century and most Butlers are of Irish descent now.

      Interesting though again that another with such an Irish surname, or surname form the British Isles, never had ancestry there. Mickey Rooney, Hulk Hogan, Eddie Murphy, etc. and so many more with Irish surnames where the names were taken somewhere along the line for different reasons as they are more adaptable and acceptable in the USA.

  3. bablah says:

    Patrick’s maternal grandfather was John Leroy Casson (the son of George Anthony Casson and Ida Butler). John was born in New York. George was born in Westmorland, England. Ida was born in Massachusetts, to James Butler and Isabelle.

  4. andrew says:

    On his “Friend” line Patrick Dempsey has at least 1/256 Lenape/Delaware Native American ancestry through Karrenhappuck Hyatt. He also has more distant Native American and Finnish ancestry

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.