Susan Irene Christenson, 69, of Apple Valley, passed away Tuesday surrounded by her loving family. She was born May 13, 1943 in Wisconsin Rapids, Wisconsin to Laughlin A. and Lily (nee Bevan) Farris. Susan is survived by her first husband John Billings, daughter Becky (Gary) Braun, son Bob (Penny) Billings, stepson Eric Christenson, grandchildren Randi Billings, Brittany (Alex) Petrikov, Erica and Ellie Braun, and Josh Christenson, sister Donna (Ron) Kiersten, and many loving nieces and nephews. Preceding Susan in death were her husband of 23 years, Martin L. “Murphy” Christenson, son David John Billings, parents, and her former mother and father-in-law John and Hazel B. Billings. Susan lived for her family, especially her children and grandchildren. She and Murphy loved to travel cross-country on their motorcycle, hike, camp, and snowmobile with so many wonderful friends. She was a truly faithful volunteer for the Armed Forces Service Center. Susan’s courage and fighting spirit will remain an inspiration for all who knew her. She will be forever loved and treasured. Visitation is 1 hour prior to a 1 PM Memorial Service Friday, April 5 at the Fort Snelling Memorial Chapel, Highways 5 & 55. Inurnment will be in Fort Snelling National Cemetery. In lieu of flowers, memorials are requested to the Armed Forces Service Center-MSP, 4300 Glumack Dr.-L.T. 3693 at MSP International Airport, Saint Paul, Minnesota 55111.