Koski, Duane R. age 83, of Burnsville, returned to his heavenly home on Nov. 13, 2017 after a valiant battle with a long illness. His devotion to his family and firm belief in God supported him in his struggle and gave him peace. Duane served his country in the US Army during Korea; In 1959 he proudly graduated from NDSU, Fargo. Duane retired after 38 years as an electrical engineer with Lockheed Martin. He is preceded in death by his mother, Ethel Koski and granddaughter, Salina. Duane is survived by his loving wife of 60 years, Jan; children, David (Kelly), Paula (Ron) Kelly, Steven (Cara) and Sara (Brett) Muehlhauser; 14 grandchildren, 7 great grandchildren, other family and many friends. Funeral service will be held 10 AM Friday Nov. 17, 2017 at the St. James Lutheran Church, 3650 Williams Dr., Burnsville with a visitation 1 hr. prior to service at church. Interment, Bethlehem Lutheran Church Cemetery, Aitkin, MN. In lieu of flowers memorials to, St. James Lutheran Church, Bethlehem Lutheran Church or Holden Village. White Funeral Home 952-894-5080 Burnsville, MN