Sister Margaret Mary Flynn, O.P., parish manager for the Catholic Churches of Wakefield in the Bronx, died unexpectedly at her home. She was 70. She had been parish manager since 2004 for St. Frances of Rome parish and the two nearby churches that St. Frances of Rome administers: St. Anthony's on Richardson Avenue and St. Francis of Assisi on Baychester Avenue. She was the first to hold the parish manager post, which was created by the pastor, Father Francis J. Corry, when he was given responsibility for the three churches. Sister Ellen Hublitz, O.P., pastoral associate for the Wakefield Churches who worked closely with Sister Margaret, said, "We were blessed to have her." A member of the Dominican Sisters of Blauvelt, Sister Margaret, formerly Sister Mary Norbert, served with the Dominican Sisters of the Sick Poor in Ossining as treasurer general, 1998-2003; assistant treasurer, 1996-1998; and treasurer, 1993-1995. She was associate director of development at Cardinal Spellman High School, the Bronx, 1990-1993, and assistant principal and math teacher at Archbishop Stepinac High School, White Plains, 1989. She served at Dominican College as director of finance and planning, 1985-1989; director of institutional research and planning, 1977-1985; instructor in mathematics and assistant professor of mathematics, 1969-1977; and director of financial aid, 1968-1969. She also was a teacher in the archdiocese at St. Nicholas of Tolentine School, the Bronx, 1962-1964; Our Lady of Victory School, the Bronx, 1960-1962; and St. Dominic's School, Blauvelt, 1959-1960. Born in Manhattan, she entered the Dominican Sisters in 1955 and professed final vows in 1963. She held a bachelor's degree from Dominican College and a master's degree from Columbia University and a doctorate in research and statistics from Fordham University. She is survived by a brother, Patrick. A Funeral Mass was offered Oct. 20 at St. Dominic's Convent in Blauvelt, with burial in St. Dominic's Convent Cemetery.