Mitchell Olga Peterson, 96, Mitchell, died Wednesday, July 6, 2011 at Rapid City, South Dakota. Survivors include three sons: Keith A. Peterson of Sedona, Arizona, Ken M. Peterson of Wichita, Kansas, and Lee Peterson of Glendale, Arizona; two daughters: Carol Wendt of Rapid City and Helen Mullings of Anchorage, Alaska; two sisters: Anita Cremer of Spencer, SD and Natalie Fridley of Mitchell, SD; eight grandchildren and four great-grandchildren. She was preceded in death by her husband: Albert in 1981. Burial will be held Saturday, July 23 at 10:00 am at the Mount Pleasant Cemetery at Artesian, SD with Memorial Services to follow on Saturday at 11:00 am at the Endeavor Presbyterian Church at Fedora, SD with Rev. Richard Poppen officiating. Memorials may be sent to the Endeavor Presbyterian Church, % Willoughby Funeral Home, 301 North Main Street, Howard, SD 57349. Arrangements are being handled by Osheim & Schmidt Funeral Home of Rapid City and Willoughby Funeral Home of Howard.