Sister Joanne Geartts, O.P., who taught theology at Fordham University in 1975, died July 28 at Columbia Hospital in Milwaukee, Wis. She was 82. She served for 47 years as a teacher of theology in high schools and as a director of religious education at assignments in Illinois, Texas, Minnesota, Wisconsin and Washington, D.C. Formerly known as Sister Margarita, she was born in Escanaba, Mich. She professed final vows as a Sinsinawa Dominican in Wisconsin in 1954. She is survived by a sister, Mary Catherine Valleau. A Funeral Mass was offered Aug. 1 in Queen of the Rosary Chapel at Sinsinawa, with burial in the motherhouse cemetery.