Mr. and Mrs. David Spencer of Amherst celebrated their 50th wedding anniversary with a dinner for immediate family at Salvatore’s Italian Garden followed by a trip to Maui, Hawaii. Mr. Spencer and the former Joan Planz were married Oct. 2, 1965, in St. John the Baptist Catholic Church in Kenmore. He taught mathematics for 34 years at Kenmore East High School and was an instructor at the University at Buffalo for 36 years. She taught social studies at Kenmore East High School and Holy Angels Academy. She served as principal at Mount St. Mary Academy and Niagara Catholic High School. They have two children and two grandchildren.