Mr. and Mrs. John M. Dayton of Kenmore celebrated their 50th wedding anniversary with an intimate family party. Mr. Dayton and Karen Martindale were married Nov. 24, 1962, in Trinity Evangelical and Reformed Church, Gowanda. He is a retired assistant principal for Williamsville School District; she is a retired hematology lab technician for Buffalo General Hospital. They have four children and eight grandchildren.