Medical education 1 Pennsylvania--History 1 Pennsylvania--History--1775-1865 1 Pennsylvania--History--Colonial period, ca. 1600-1775 1 Psychiatry 1 Quaker women 1 Quakers 1 more ... Sesqui-Centennial International Exposition (1926 : Philadelphia, Pa.) 1 Stamp collecting 1 Travel 1 United State--History--Colonial period, ca. 1600-1775 1 United States--History--Revolution, 1775-1783 1 less ...