The Rev. and Mrs. Paul R. Mertzlufft of Hamburg celebrated their 50th anniversary with a renewal of their marriage vows in All Saints Lutheran Church, Hamburg, followed by a surprise gathering of family and friends in Michael's Banquet Hall, Hamburg, and a family Caribbean cruise. Mr. Mertzlufft and Winifred G. McKnight were married June 1, 1957, in Concordia Lutheran Church, Buffalo. He is a retired minister. The couple has three children and six grandchildren.