Mr. and Mrs. Don Riederer of Lockport celebrated their 60th wedding anniversary. A one-week family stay at the River Royalty Mansion on Alexandria Bay in the Thousand Islands is planned for the summer. Mr. Riederer and the former Alice Van Meter were married March 18, 1955, in St. Catherine Laboure Catholic Church in Torrance, Calif. He is retired from Arcata Graphics with 41 years of service. They have six sons, 15 grandchildren and eight great-grandchildren.