Source (if not Accessioned)
Mrs. Maud H. HoopesNotes
Drexel's copy of Sappho was acquired thus (from another Google search): The third copy of Sappho, ordered by J.C. Peterson [i.e., Charles Jacobs Peterson, 1818-1887] in 1866, was donated by his widow, Sarah H. Peterson, to Drexel.... Almost certainly this would have been the Petersons of Peterson's Magazine! Sarah apparently assumed her husband's role after his death in 1887.