Rapid City Darlene Jean Mattson, 82, Rapid City died Thursday April 17, 2008 at the Rapid City Regional Hospital. A memorial service will be 1:00pm Friday, April 25, 2008 at the Black Hills Funeral Home & Cremation Services of Sturgis, with Rev. Keith Nelson officiating. Inurnment will follow at the Black Hills National Cemetery. Survivors include two sons Jeffry L. Mattson of White River, AZ, Dean Alan Mattson of Rapid City, SD; one brother Donald Fralick of Rapid City, SD; four grandchildren, five great-grandchildren, numerous nieces, nephews, and cousins.