Carol J. Keller, 73 years old, of Mayville, passed away on Tuesday, December 29, 2015 at St. Agnes Hospital, Fond du Lac, WI.No formal services will be held.Carol was born on October 5, 1943 to Clarence and June Maas in Beaver Dam, WI. She was a graduate of Horicon High School. Carol was united in marriage to David L. Keller on September 3, 1966 in Mayville. She was employed by and retired from Beatrice Cheese Co. in Mayville. Carol enjoyed gambling, playing bingo and sheepshead, and doing puzzles.Carol is survived by: her husband David of Mayville; her children- Corey (Bridget) Keller of Fond du Lac & Paula (Dale) Schultz of Fond du Lac; her sister Beverly (Hank) LaGrange of Beaver Dam; her grandchildren- Alyssa, Josh, Casey, & Collin; nieces, nephews, other relatives & friends.Carol is preceded in death by her parents.