Title: O.M. Poe papers
Subjects: Correspondence, Lighthouses, United States. Army, United States. Army of the Ohio, Officers, Campaigns, Military engineering, Canals, Reconstruction (U.S. history, 1865-1877), United States, Engineering and construction, History
Places: Georgia, Great Lakes (North America), Huron, Lake (Mich. and Ont.), Illinois, United States, Sault Sainte Marie Canal (Mich.), Tennessee, Hennepin Canal (Ill.), South Carolina, Michigan, Spectacle Reef (Mich.)
People: Zachariah Chandler (1813-1879), R. S. Williamson (1824-1882), Hartman Bache (1797-1872), Jacob Merritt Howard (1805-1871), William T. Sherman (1820-1891), Charles N. Turnbull (1832-1874), W. F. Raynolds (1820-1894)
Time periods: Civil War, 1861-1865