Sister Margaret O’Brien

Assistant to the President

Margaret-O'BrienSister Margaret M. O’Brien is the Congregation’s Assistant to the President. She has served as the Congregation Treasurer since 2012 and was a Regional Coordinator on the Council from 2003 to 2011.

Sister Margaret has ministered in several capacities during her fifty-five years as a Sisters of Charity. Her first ministry was in education where she taught in elementary education for seven years before serving as a librarian for eight years. She then served in school administration for seven years before theological studies brought her to California in the late 1980s. During her eleven years in the Diocese of Oakland, Sr. Margaret served as teacher and librarian. She returned to New York in 1999 and was Senior Vice President for Mission in the Sisters of Charity Healthcare System on Staten Island before being elected to Leadership in 2003.

Sister Margaret holds a BA in English from the College of Mount Saint Vincent, an MS in Science from Columbia University, and a CTS from the Jesuit School in Berkeley, CA. She entered the Sisters of Charity in 1960; her religious name was Sr. Mary Elizabeth. She is a graduate of St. Barnabas High School and Our Lady of Angels, both in the Bronx.