Schaefer, William "Bill", of O'Fallon, Missouri, died on Thursday, April 11, 2013 at the age of 87. Loving husband of Ethea Schaefer; beloved son of the late William and Bernadine Schaefer; devoted father of Joan (Jerry) Nevins, Nancy (Joseph) Radtke, Susan (Reza) Kaliush, and Bill (Michelle) Schaefer, Jr.; cherished grandfather of Rebecca Duncan, Laura (Ryan) Novak, Justin, Katie, Ethan, and George Nevins, Parisa and Kayvon Kaliush, Emily and Lillian Schaefer; treasured great-grandfather of Cole Duncan, Roman Watts, and Lucy Novak. He is preceded in death by his sister Lois Mae Braun. Memorials may be made to The Alzheimer's Association