91, of Scottsdale, passed away peacefully on March 24, 2015. She was the widow of Knute L. Petersen and they were married over 50 years. She is survived by her daughters Joyce (Christopher) Knight, Gail (JayD, deceased) Schlueter, sons Kevin (Mary) Petersen, Brian (Tracy) Petersen, 11 grandchildren and 13 great-grandchildren. Donations can be made in Marian’s memory to Hospice of the Valley, 1510 E. Flower Street, Phoenix, AZ 85014. Private services have been held.