PORTLAND – Sarah Sullivan Muller, a lifelong friend of the Sisters of Mercy, died peacefully April 19, 2007, at Mercy Hospital, Portland, after an illness of several months. She was born in Bangor, the daughter of James and Mary (Petrie) Sullivan. She attended St. Mary’s Grade School, John Bapst High School, Bangor and was a graduate of St. Joseph’s College of Maine. Sarah was a former member of the Sisters of Mercy and during that time was known as Sister Mary Casimir. She taught in several Catholic schools of the Diocese of Portland. In the late 1960s Sarah moved to New York, where she furthered her studies in English, receiving a master’s degree from Columbia University and pursuing postgraduate studies there. She taught English at Benjamin Franklin High School, Manhattan, N.Y., and was principal of the Visitation Catholic School in the Bronx. In New York, Sarah was a member of the Auxiliary of the Ancient Order of Hibernians and often spoke proudly of walking in the annual St. Patrick’s parade. After the death of her beloved husband, Sydney, Sarah moved to Portland, where she continued her involvement in church and civic activities. She was a Mercy Associate, Regent for two terms for Court Mystical Rose of the Catholic Daughters of America and a Lady of the Equestrian Order of the Holy Sepulcher of Jerusalem. Sarah lived life fully. She enjoyed art, classical music and the theater. At the heart of her life was her Catholic faith. She was an avid reader of theology and a deeply prayerful woman. Speaking of her, one of her friends said, “To know Sarah was to know God.” Sarah will be remembered for her deep faith, her generosity to those in need and her affection for the Sisters of Mercy and her many friends. In addition to her husband, she was predeceased by her parents and two sisters. Sarah is survived by several cousins and many friends. Sarah’s family and friends would like to give a special thanks to the doctors, nurses and staff of the fifth floor at Mercy Hospital for their excellent care, and to the staff of St. Joseph’s Manor for their care of Sarah. A memorial Mass will be celebrated at a later date. Arrangements are by Conroy-Tully Crawford Funeral Home, 172 State St., Portland. Online condolences may be made at www.ctcrawford.com