Diary kept by Joseph Barnum, a married printer and Civil War soldier. Barnum originally served in Company A, First Connecticut Infantry. He enlisted in the 16th Connecticut on 11 August 1861 and was mustered-in as First Lieutenant, Company B. He was promoted to Captain of Company H on 20 September 1862 but resigned on 13 February 1863. He was re-mustered, Captain, Company H, 12 May 1863 and served until his muster-out on 24 June 1865. According to references found in the diaries and letters of other members of the 16th Connecticut, Barnum was a rather unpopular officer. The final date of this diary coincides with the date he was found guilty by Court Martial of neglect of duty to the prejudice of good order and military discipline. His arrest seems to have been due to his actions or inactions on 21 January 1864. The diary is enlightening as to the personality of its owner. He keeps careful count of letters sent to and received from his wife. There are many cryptic references to activities which may be sexual in nature. Baseball was documented as a popular pastime in February 1864.