Mark Joseph Steen of Las Vegas passed away at home on January 7, 2019 after a brief illness. Mark was originally from Orchard Park, New York and had made Las Vegas his home for over twenty (20) years. He is preceded in death by his mother, Norma (Stanley) and survived by his father, John Erwin; siblings Sharon (Bauman), John and Paul; and niece Zoe. Private family services are scheduled in Las Vegas, and a burial will be planned in Orchard Park, New York in the upcoming months. In lieu of flowers, the family asks that donations be made to Dominican Sisters Monastery, 335 Doat Street, Buffalo, New York 14211.