James B. Caldwell of Alabama was 19 years old when he entered the Civil War in the 13th Tennessee Infantry Regiment. He served in the regiment in Tennessee, Missouri, Kentucky, Arkansas, and Mississippi. The collection contains the diary James B. Caldwell kept during his service with the 13th Tennessee Infantry Regiment, 23 May 1861-13 August 1962. The diary chiefly describes daily activities of the regiment as it travelled throughout Kentucky, Tennessee, Missouri, and Arkansas, and camp life while waiting for active service, including card-playing and nightly dances. Included is a description of the Battle of Belmont, 7 November 1861, in Columbus, Ky.; sketched maps of camps and lists of Caldwell’s personal expenses; and declarations of love and verses dedicated to Caldwell’s fiance Maggie, including a passage written on 7 April 1962 that Caldwell recited when he proposed to her while on furlough. Most diary entries are undated and do not appear in chronological order. Also included are a typed transcript of the diary and other materials providing historical and geographical context for the diary.