William Dierolf, 89, of Quakertown, passed away Tuesday, November 29, 2016. Born in Gilbertsville, PA, he was a son of the late John and Lillian (Zepp) Dierolf. He was the loving husband of the late Betty F. Dierolf. He worked at Clymer's Machine Shop in Trumbauersville. He was always on the go, and enjoyed attending fairs, auctions, and car shows with family. Survivors: Two sons, William Dierolf, Jr. of Quakertown, Kevin Dierolf and wife, Jeanne Dierolf, of Quakertown; three daughters, Ruth Kuremsky of Quakertown, Naomi Werner of Danielsville, and Marlene Dierolf of Quakertown, four grandchildren, John Kuremsky and wife, Michelle Kuremsky, Matthew Werner and wife, Katie Werner, Zachary Dierolf and Michael Dierolf, and three great-grandchildren, Chandler, Ethan and Riley. He was pre-deceased by a daughter, Debbie Dierolf, a sister, Florence Wolfe, and five brothers, Clarence, Leroy, Harry, Harold and Kenneth Dierolf. A private service for family will be held on Friday morning. Interment is in Pleasant Hill Cemetery.