2pp, 8 x 12 1/2 in. Addressed to John F. Dodge of Boston, Massachusetts, and written by Captain Henry R. Sibley (faded ink overall, some toning to all folds, and chipping to edges). Accompanied by original envelope postmarked New Orleans, LA, 3 December 1863. Letter discusses the elections in Charlestown in Boston, Massachusetts, with Sibley discussing the pro-emancipation sentiment within his regiment.

Henry R. Sibley left behind his work in business in the state of Massachusetts to join the US Army during the American Civil War. Initially serving with the 29th Regiment of Massachusetts Volunteers, he spent the majority of the war serving in assorted Commissary and Subsistence departments. For this position he received a promotion to Captain. Sibley served in this capacity during the Red River Campaign and the disastrous Battle of Sabine Crossroads (Battle of Mansfield). He was commended for keeping his command in good order in the latter action, permitting vital resources to be shifted back that later permitted the Union to wage a successful defense at the Battle of Pleasant Hill. On 16 December 1865, he received a promotion to Brevet Lieutenant Colonel of Volunteers, having returned to his native Massachusetts to resume his life after the war.