Mr. and Mrs. Thomas Osinski of Eden celebrated their 50th wedding anniversary with a dinner party with their children. A family trip to the Adirondacks with their children and grandchildren is planned for the end of June. Mr. Osinski and the former Francine Hafner were married June 5, 1965, in SS. Peter and Paul Church in Williamsville. He is a retired autoworker at the General Motors Engine Plant in Tonawanda, with more than 40 years of service. She is a retired library clerk for Orchard Park Public Library. They have eight children and 17 grandchildren.