The Social Work Historical Collection of 407 volumes dates from the mid-1970's, with the purchase of the Marie Stopes birth control collection. She was the central figure of the birth control movement in England during the early part of the twentieth century. Her birth control clinic generated much controversy, and her personal collection reflects the many sides of this volatile subject. The collection's scope also includes child welfare, social settlements, and the history of social work. It includes significant works by such prominent social workers as Jane Addams, Dorothea Dix, Mary Ellen Richmond, Margaret Sanger, and of course, Marie Stopes herself. Other highlights are individual reprints published by the Milbank Memorial Fund, devoted to population and fertility studies conducted in countries throughout the world from the 1940s through the 1960s.