Age 77, of Green Tree on Thursday, October 3, 2019. Beloved wife of Frank C; loving mother of Michael, Richard and Daniel Piccinini. Mary Ann worked at Duquesne University and was a member of St. Margaret of Scotland Church. Friends welcome Monday, 2--4 & 6-8 p.m. at WILLIAM SLATER II FUNERAL SERVICE, 1650 Greentree Rd., Scott Twp. 15220 (412-563-2800). Mass of Christian Burial in St. Margaret of Scotland Church Tuesday, 10 a.m.