The collection consists of letters from William N. Mattison to his wife. The letters describe the hard living conditions of the soldiers, the battle locations of their regiment, and his task of recovering soldiers from hospitals and returning them to the regiments. His regiment moved often. His letters indicate that he was stationed at Camp Hampton Rickean; Camp Wappoo, South Carolina; Marietta, Georgia; Corinth, Mississippi; West Point, Mississippi; Sattillo, Mississippi; near Harrison, Tennessee; Camp Dunlap, Tennessee; near Knoxville, Tennessee; near Rutherford County, Tennessee; and finally near Dalton and Marietta, Georgia. His last letter of record dates 25 June 1864.