Mr. and Mrs. David Nyhart of Hamburg celebrated their 50th wedding anniversary with their family at a Mass and renewal of their wedding vows at St. Bernadette’s Church in Orchard Park. They were guests at a dinner given by their children at a local restaurant and at a party at their son’s home. Mr. Nyhart and the former Patricia Kyte were married Feb. 4, 1967, in Saints Peter and Paul Church in Hamburg. Mr. Nyhart is the owner of Lind-Hart Business Systems and Lind-Hart Mini Ship in Hamburg. Mrs. Nyhart is a retired registered nurse. They have three children and eight grandchildren.