The Clark, W.A. mss., 1862-1918, consists primarily of letters from Hoosier soldier William Allen Clark, 1844- , to his parents in Rossville, Indiana, during his service in Company K of the 72nd Indiana Volunteer Infantry Regiment.
The Straight mss., 1864-1881, consists primarily of documents and papers relating to Captain David Evander Straight, 1832-1902, and the 100th Regiment, United States Colored Infantry, in the Civil War.