Mr. and Mrs. Ronald Zelak of Buffalo celebrated their 50th wedding anniversary with a private dinner. Mr. Zelak and Carol A. Haskins were married Aug. 31, 1963, in Queen of All Saints Catholic Church, Lackawanna. He is a retired controls technician for Bethlehem Steel and Arcellsor Mittel after 44 years of service. She is a retired senior customer service representative for Beneficial New York Inc. They have a son and two grandchildren.