doi:10.7916/D8GH9QGXThe spy unmasked or, Memoirs of Enoch Crosby, alias Harvey Birch, the hero of Mr. Cooper's tale of the neutral groundBarnum, H. LbookstextUnited States--History--Revolution, 1775-1783--Secret service.United States--History--Revolution, 1775-1783--Personal narratives.Crosby, Enoch, 1750-1835.Cooper, James Fenimore, 1789-1851. Spy.