SK Mark Alan Cearley, 66, of Tulsa, passed away Sunday, November 1, 2020. He was born August 25, 1954 in Tulsa, OK  Brother Mark was a mechanic for American Airlines, a member of St. Pius X Catholic Church and Knights of Columbus Council #4721. He was a former Diocesan and State President of Knights on Bikes. He was the First Central Region Vice President of Knights on Bikes.