Virgil Carrington Jones, U.S.S. Cairo: The Story of a Civil War Gunboat
“ Men in the small boats recovered one infernal machine and debris from the torpedoes exploded the day before. In the meantime, the bow of the Cairo had turned toward shore. Selfridge, who seemed to have little fear of the Confederate torpedoes, backed out to proceed upstream and then ordered the Marmora to move ahead slowly. The Cairo took the lead and advanced into unreconnoitered waters. Her big wheel had made only a dozen revolutions when there were two explosions in quick succession, one close to her port quarter and the other under her port bow. ”
