Davis, Katharine Bement (15 January 1860–10 December 1935), social worker, prison reformer, and sex researcher, was born in Buffalo, New York, the daughter of Frances Bement and Oscar Bill Davis, a manager for the Bradstreet Company, precursor of Dun and Bradstreet, the credit rating firm. When her father suffered business reversals following the panic of 1873, Davis had to postpone plans for college and work as a public school teacher for ten years. She continued her studies independently and in 1890 entered Vassar College at the age of thirty, graduating two years later with honors....