Mr. and Mrs. William J. Kreher of Amherst celebrated their 50th wedding anniversary with a family luncheon in the reception room at St. Gregory the Great Catholic Church in Amherst. Mr. Kreher and the former Joanne Corda were married June 11, 1966, in St. Matthew Catholic Church in Buffalo. He is a retired businessman. She is a part-time pharmacy technician for Lifetime Health in Buffalo. They have two children, four grandchildren and two great-grandchildren.