Three ALsS (1855 November 1 and 1856 April 10 and June 27) written by Trowbridge to Benson J. Lossing relating to Trowbridge's experiences during the War of 1812; autobiographical sketch (undated); accounts of the Battle of York, Toronto, Ont. (1813), the capture of Fort George, Niagara-on-the-Lake, Ont., (1813), and the siege of Fort Erie, Ont. (1814); drawings of Toronto, Fort George, and Fort Erie during the War of 1812; obituary of Edmund P. Gaines; article on Miles Vernon; and clipping and photocopy of a drawing of fortifications at Pensacola, Fla.