Wilhelmine "Sis" Koenig, 93, of Lake City, passed away Thursday, Nov. 17, 2016, at Mayo Clinic Health Care Center. She was born on Sept. 12, 1923, to Fred J. and Elsie A. (Wilde) Murray. She grew up in the West Albany area and attended school there before moving to Lake City. In February 1941, Sis married Howard Gunderson. They were later divorced, and Howard died in 1984. On Sept. 12, 1987, Sis married George Koenig at St. Mary's of the Lake Catholic Church in Lake City. George died in 1997. Sis worked for years as a waitress and cooked for many of the local restaurants in town, the old Royal Hotel Café, the Snack Shop, the New Blue Moon, the Lake City Golf Club and finally worked at Di-Acro/Houdaille cleaning the office before she retired. Sis was a life member of the Lake City VFW Auxiliary 8729, being active in the auxiliary's taco program for many years and was a member of St. Mary's of the Lake Catholic Church. She enjoyed dancing, embroidering, playing cards and playing bingo. Sis is survived by one son, Robert (Gladys) Gunderson; and one daughter, Maxine Shell, both of Lake City; four grandchildren, Troy (Tammy) Shell, of Lake City, Tracy (Deb) Shell, Orlando, Fla., Christine (Jeff) Gruber, Rochester, and Joe Gunderson, Winona; three great-granddaughters, Nicole, Tara and Brooke Shell; two great-great-grandchildren, Audrey and Silas McGee; special friend, Shirley McGrath; sister-in-law, Kathleen Koenig Trunk, California; along with many Gunderson and Koenig/Carter nieces and nephews. She is preceded in death by her parents; both husbands; one sister, Dorothy Koch; and one brother, Leslie Murray. A Mass of Christian Burial will be at 11 a.m. Monday, Nov. 21, at St. Mary's of the Lake Church in Lake City, with Father Joseph Pete officiating. Burial will be at St. Mary's Cemetery. Visitation will be from 3 p.m. to 5 p.m. Sunday at the Mahn Family Funeral Home Anderson-Peterson Chapel in Lake City and one hour prior to the service at the church. Arrangements are with the Mahn Family Funeral Home Anderson-Peterson Chapel in Lake City. Online condolences can be sent to mahnfamilyfuneralhome.com.