Statistics for occurrence #1 of “Fort Warren” in chapter 2, page 26 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 8: Soldier Life and Secret Service.:

...isguise. Sheridan kept his own counsel, had the pair shadowed, and speedily found they were sending far more information to the foe than they were bringing to him. They were arrested and ordered to Fort Warren , but in most mysterious fashion they escaped at Baltimore. A few weeks later and Stanton found reason to believe that his friend Lomas was closely allied with the conspirators later hanged for the ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Fort Warren (Massachusetts, United States) 1,093 4 11 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.