The 1864 leather bound, preprinted diary contains two daily entries per page with cash accounts and notes sections in the back of the diary. In 1864 Benjamin M. Peck was the Captain of Company B in the 141st Regiment PA Volunteers. Due to absences, injuries, and illness of other officers he was placed in command of the regiment before being assigned to lead the 1st United States Sharp Shooters. Brigadier General Byron R. Pierce saw fit to place him in charge of the three companies of sharpshooters and he remained in this position until the end of the war. Peck describes battles, skirmishes, picket lines, commands, and other military assignments and engagements in great detail. He notes the various marches and travel routes of his company and records his travels between the Virginia front and his home in Towanda, PA. As part of the Army of the Potomac, Peck recounts the regiments campaign in Virginia and the Siege of Petersburg. He lists his men who were wounded or killed in battle, describes court martial proceedings, and even gives an account of the execution of a Union soldier for desertion. Following the 1864 presidential election he enumerates each candidate's results within the division, which Lincoln won convincingly.