John Howard Koska, 57, passed away Saturday, March 23, 2013 in Canyon Lake, Texas. He was preceded in death by his parents, Adolph Joseph Koska, Jr. and Martha Elaine Koska-Brown. Survived by son, Ryan Koska; daughter, Kayla Barnard and husband Sterling; daughter, Courtney Gilkison and husband Anthony; grandchildren, Maylynn Barnard, Naomi Andrews, and Lucien Gilkison; brother, Adolph Joseph “Jay” Koska, III and wife Carol; nephew, Chase Koska; and other relatives and friends. Visitation will be held 12:00 p.m. to 2:00 p.m., Saturday, April 6, 2013 at Earthman Resthaven Chapel, with the Celebration of Life Funeral Service at 2:00 p.m., Interment will follow at Earthman Resthaven Cemetery.