Davidson, Margaret, 1936- Helen Keller's teacher / by Margaret Davidson ; illustrated by Wayne Blickenstaff. - New York : Scholastic Book Services c1965. - 153 p. : ill. ; 20 cm. ISBN: 0590022245 (pbk.) Subjects--Personal Names: Sullivan, Anne, 1866-1936. Keller, Helen, 1880-1968.