(WAR--CIVIL) Autograph letter signed, from Colonel D. S. Curtiss to Benson John Lossing, written on Treausry Department letterhead, introducing 10 manuscript leaves by Curtiss. Dated December 4th, 1866, Washington, DC. With two contemporary newspaper clippings affixed.Curtiss provides an account of the raids, and railroad sabotage, executed by the 1st District of Columbia Cavalry in the defense of the City of Washington. Benson John Lossing (1813-1891) would refer to Curtiss' account in the third volume of his popular history on the American Civil War.