Dorothy M. Slifer, 83, of Quakertown, died Tues, Nov. 15, 2011 in her home. She was the wife of the late Harold W. Slifer. Born in Allentown, she was the daughter of the late Charles and Frances (Roth) Wenzel. She was employed for 40 years at the former Lawrence Schiff Silk Mill in Quakertown. Surviving is daughter, Cheryl Slifer of Quakertown. Funeral service will be held at noon on Mon, Nov. 21 at Jeffrey A. Naugle Funeral & Cremation Service, 135 W. Pumping Station Rd.,Quakertown. Call: 11 - noon. Interment: George Washington Memorial Park, Plymouth Meeting.