Thomas G. Filer, 61, Quakertown, Nov. 3 Doylestown Hospital. Father of: Colleen Filer-VanDusen, Doreen Letofsky, Janet Filer, Wesley and Jac. Memorial service: 3 pm, Sun. Nov. 7 Jeffrey A. Naugle Funeral & Cremation Service, Quakertown. Call: 2-3:00 pm Sun.