Birth Name: Christopher Michael Settlemire
Place of Birth: Warren, Ohio, U.S.
Date of Birth: May 9, 1985
*father – German, smaller amounts of English, Irish, Scottish, and Welsh
*mother – Polish, Ukrainian, Slovak, Ruthenian/Rusyn
Chris Zylka is an American actor and model. His roles include the films My Super Psycho Sweet 16, and its sequels; Shark Night 3D, Piranha 3DD, The Amazing Spider-Man, Freaks of Nature, Bare, Dixieland, Welcome to Willits, Novitiate, and The Death & Life of John F. Donovan, and the shows 10 Things I Hate About You, Zeke and Luther, The Secret Circle, and The Leftovers.
Born Chris Settlemire, he later took Zylka, his mother’s maiden name, as his stage name. Zylka is a Polish surname. Chris was raised by his mother.
Chris’s paternal grandfather was Ralph Duane Settlemire (the son of Martin Settlemire and Eva G. Kornprobst). Ralph was born in Pennsylvania. Martin was the son of Isaac Perry Settlemire and Arvilla “Anna” Rager. Eva was the daughter of Harry Milton Kornprobst and Emma L. Stout/Stoup.
Chris’s paternal grandmother is Wanda Lou Lattimer (the daughter of Oren Fay Lattimer and Virginia Cunningham). Oren was the son of Roy Jefferson Lattimer and Osie M. Miller. Virginia was the daughter of Chester Branson Cunningham and Mary E. McGrail.
Chris’s maternal grandfather is William Zylka (the son of Metrophan/Mitrofan/Michael Zylka and Anastasia Esther Kozarewski/Kozorewski). Metrophan and Anastasia were both emigrants, of Polish and Ukrainian origin. Metrophan was the son of Makar Zilka and Aleksandra Slewsarweski, who was from Novyi Oleksynets, Ternopil oblast, Ukraine. Anastasia was the daughter of Dimitro Kozarewski and Feodora Antonuk.
Chris’s maternal grandmother is Patricia Elaine Rosko (the daughter of Michael Rosko, Jr. and Margaret A. Zimomra). Michael was born in Pennsylvania, and likely was of Slovak descent. Margaret was also born in Pennsylvania, the daughter of Michael “Mike” Zimomra and Ilona/Helena/Helen Busmaj Csukalovcsak/Cukalovcak, who was from Homonnarokitó (Rokytov pri Humennom, Slovakia), and was of Ruthenian/Rusyn ancestry.
Sources: Genealogy of Chris Zylka – https://www.geni.com
Obituary of Chris’s paternal great-grandmother, Eva G. (Kornprobst) Settlemire – http://www.tributes.com
Chris’s maternal great-grandparents, Metrophan/Mitrofan/Michael Zylka and Anastasia Esther Kozarewski, on the 1940 U.S. Census – https://familysearch.org
Death records of Chris’s maternal great-great-grandparents, Makar Zilka and Aleksandra Slewsarweski – https://www.findagrave.com
Immigration record of Chris’s maternal great-great-grandmother, Aleksandra Slewsarweski – https://www.familysearch.org
Chris’s maternal great-grandmother, Margaret A. Zimomra, on the 1930 U.S. Census – https://familysearch.org
Passenger record of Chris’s maternal great-great-grandmother, Ilona/Helena/Helen Busmaj Csukalovcsak/Cukalovcak – https://www.libertyellisfoundation.org
Aleksandra was from Novyi Oleksynets, Ternopil oblast, Ukraine.
I’m not sure if any of his ancestor were Polish, though.