Sister Anita Rosaire Fay, O.P., who served for many years in education and then in government service, died Feb. 21 in the infirmary of the Dominican Sisters of Hope in Newburgh. She was 99. A teacher for 40 years in New York and New Jersey, she taught in the archdiocese at Guardian Angel School, Manhattan, 1935-1941, and at St. Mary's, Poughkeepsie, 1941-1943. She later taught history and political science at Mount St. Mary College, Newburgh, 1966-1975. In 1975, she moved to Washington, D.C., where she spent more than 23 years on the congressional staff of the House of Representatives as special projects director for Rep. Benjamin A. Gilman, a Republican who represented Rockland and neighboring communities for many years. Born in Manhattan, she entered the Dominican Sisters in 1928 and professed final vows in 1936. She held a bachelor's degree from Fordham University and a master's from Villanova University. A Funeral Mass was offered Feb. 24 in the Dominican Sisters of Hope chapel in Newburgh, with burial in the sisters' cemetery there.