Mr. and Mrs. James Miklinski of Lancaster and Brooksville, Fla., celebrated their 50th wedding anniversary with a European river cruise and a family gathering at their home in Florida. Mr. Miklinski and the former Fay Neeland were married Aug. 15, 1964, in the Alden Presbyterian Church, Alden. He is retired from Upstate Niagara Cooperative. She is a former dental hygienist. They have two sons and four grandchildren.