Mr. and Mrs. Graham Millar of Tonawanda celebrated their 50th wedding anniversary with a renewal of marriage vows in St. Peter's Episcopal Church, Eggertsville. A family gathering will take place in July. A resort stay in New Hampshire is also planned. Mr. Millar and Norma C. Swan were married June 9, 1962, in Church of the Advent, Kenmore. He is a retired professor of history at Niagara County Community College; she is a retired elementary teacher in the Ken-Ton School District. They have three children and seven grandchildren.