Passed peacefully away at Presentation Convent, Cathedral Square, St. John's on Saturday, July 2, 2016, aged 81 years. Sister Marilyn was predeceased by her parents Sarah and James Costello of Avondale. Left to mourn and to celebrate her life are her cousin Clary Murray and his wife Mary, her many friends in Newfoundland and in Dominica, West Indies and the Presentation Sisters. She is resting at Presentation Motherhouse, Cathedral Square, St. John's. Visitation will take place on Monday, July 4th from 7:00 - 9:00 p.m.; Tuesday, July 5th from 10:00 - 12:00; 2:00 - 4:00, and 7:00 - 9:00, with a Vigil Service at 8:00 p.m. Mass of Christian Burial will be celebrated at the Basilica of St. John the Baptist on Wednesday, July 6th at 9:30 a.m. Interment will follow at the Presentation Cemetery, Cathedral Square.