Age 96, of South Fayette, on April 22, 2024. Beloved husband of Marge (Geisler) Mueller and the late Shirley (Kratovel) Mueller; loving father of Nancy (Ken) Tichenor, Christine (Dave) Westrick, and Robert (Cathiann) Mueller; cherished grandfather, great grandfather, great-great-grandfather, and step grandfather. William served proudly in the U.S. Navy and worked for 28 years with General Motors. He enjoyed woodworking and was a talented carpenter and painter. A Mass of Christian Burial will be celebrated on Friday at 10 AM at St. Barbara Church of Corpus Christi Parish, everyone please meet at church. In lieu of flowers, memorials may be made to the Beaver County Humane Society.