This collection consists of a microfilm copy of the military papers of Charles H. Olmstead. They contain orders, circulars, communications and reports, telegrams, and some letters about military matters written to Olmstead or issued by him, and also copies of communications written by him, all from the Civil War. In addition, there are 23 letters written by Olmstead to his wife who was in Savannah and later in Milledgeville. His letters to Mrs. Olmstead were written from Fort Pulaski, January 1861-March 1862; from James Island, July-October 1863; and from camps in northern Georgia in 1864. They contain many details about his activities and duties, his homesickness, and his estimates of the current situation and speculation about the future.