Dorothy A.Ziack Hlopko;88;of 428 Belle Vernon Apartments;Belle Vernon;died Thursday;Jan.19;1989;at 10:38 a.m.in Mon Valley Hospital. She was born Jan.25;1900;in Uniontown;a daughter of the late John ad Anna Kolor Ziack. Mrs.Hlopko was a member of Holy Name of Jesus Roman Catholic Church;Monessen;and it Christian Mothers. She was a lifelong resident of the Mon Valley area. In addition to her parents;whe was preceded in death by her husband;John Hlopko;one brother;John Zevok;and two sisters;Mary Onderko and Anna Sabol. Surviving are one sister;Elizabeth Troychak of Long Beach;Calif.;four nephews;Stephen Onderko of Belle Vernon;Jack Andrews of Uniontown;Andy Onderko of Monessen and Rudy Troychak of Long Beach;Calif.;and two nieces;Martha Bethem of Belle Vernon and Lillian Miller of Long Beach;Calif. Friends will be received Friday from 2 to 4 and 7 to 9 p.m. in the Leonard J.Parzynski Funeral Home;626 Broad Ave.;Belle Vernon;where a prayer service will be held Saturday at 9 a.m.;followed by Mass of Christian Burial at 9:30 a.m.in Holy Name of Jesus Roman Catholic Church;Monessen;with Rev.William Homolak;pastor;as celebrant. Interment will be in Belle Vernon Cemetery. Parish Rosary will be recited n the funeral home at 2 p.m. on Friday. The Leonard J.Parzynski Funeral Home is handling the arrangements.