Sister Miriam Ambrose O'Connell, S.C., a principal and teacher at schools in the archdiocese, died April 23 at Mary the Queen Convent in Yonkers. She was 100. She was principal of Sacred Heart School, Manhattan, 1964-1970, and Our Lady Star of the Sea, Staten Island, 1961-1964. She taught at St. John's, Goshen, 1930-1942, and St. Joseph's, the Bronx, 1927-1930, and in Southampton and Brooklyn. She was coordinator of religious education at St. Boniface in Monsey (now Wesley Hills), 1970-1972, and in Queens. Later she was a staff member in food service at Mount St. Vincent, the motherhouse in the Bronx, 1976-1986. Born in Manhattan, she entered the Sisters of Charity in 1925 and professed final vows in 1931. She held a bachelor's degree in history from the College of Mount St. Vincent. A Funeral Mass was celebrated April 26 at Mary the Queen Convent, with burial at St. Joseph's Cemetery in Yonkers.