Age 63, of Penn Hills, formerly of Lawrenceville, on Tuesday, September 16, 2014. Beloved husband of Kathleen J. (Erdeljac) Wierzbowski; loving father of Dr. April (Marc) Kwiatkowski, Lisa (Brian) Kaylor and Paul (Brianne) Wierzbowski; grandfather of Marc, Jr., Camryn, Luke and Temi; son of the late Anthony and Catherine (Pupich) Wierzbowski; brother of Anthony Wierzbowski and the late Betty Ann Harshaw; he is survived by his loyal companion, Jett Wiz and many loving nieces. Dennis was a 40 year employee of the original Lawrenceville Screw Company (LSC), was an avid Lionel Model Train collector and he loved to fish. Memorial contributions can be made to the American Cancer Society, 320 Bilmar Drive, Pittsburgh, PA 15205. Family and friends received at the WALTER J. ZALEWSKI FUNERAL HOME, 216 44th Street, Lawrenceville on Thursday 1-9 p.m. Funeral Mass at St. Nicholas Church on Friday at 10 a.m.