Statistics for occurrence #1 of “Captain Poe” in chapter 12, page 251 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

... Captain Poe
The tripod signal in the background was erected by Captains Dorr and Donn, of the United States Coast Survey, in the triang...
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