Mr. Jessen was born in Flensburg, Germany and moved to Ft. Pierce in 1984 coming from Barberton, Ohio.He worked for Babcock & Wilcox Co., Barberton, OH for 41 years as a chief inspector of nuclear components. He was a Veteran of WWII serving in the U.S. Air Force, member of St. Mark’s Catholic Church, and the VFW.Survivors include his wife of 61 years, Mary V. Jessen of Ft. Pierce, FL; sons, Chris E. Jessen, II of Vero Beach, FL, John C. Jessen of El Paso, TX, and James A. Jessen of Doylestown, OH; five grandchildren; and one great-grandchild.In lieu of flowers, memorial contributions may be made to Hospice of the Treasure Coast, 805 Virginia Ave., Ste. 1, Fort Pierce, FL 34982.