The Personal Papers series reflects aspects of Claudius Grant's military, professional, and personal lives. It includes a multi-volume diary written while serving in Co. D, 20th Michigan Infantry in the Civil War (1862-1865) and which documents daily activities in camp and on the march; comments on drunken officers; a criticism of Colonel A. W. Williams; accounts of the sieges of Knoxville and Petersburg and of the battles fought during May and June in 1864, especially the battle of the Wilderness. The series also includes correspondence (mainly with Grant's mother and wife) while he was a student at University of Michigan and during the Civil War. ASmong other topics, these letters explain the resolutions asking for the resignation of Colonel Williams; describe a march through Kentucky and the battle before Petersburg. Other highlights include letters to William H. Pettee (Dec. 6, 1880) concerning the establishment of a school of mines at the University and Harry B. Hutchins (Sept. 18, 1905) discussing the relative merits of the Michigan Union and Alumni Also included is a paper (Oct. 18, 1899) on the Battle of Horseshoe Bend.; letter, Dec. 6, 1880, to William H. Pettee concerning the establishment of a school of mines at the University; letter, Sept. 18, 1905, to Harry B. Hutchins discussing the relative merits of the Michigan Union and Alumni Memorial building projects. The series also includes some miscellaneous deeds as well as a paper (Oct. 18, 1899) on the Battle of Horseshoe Bend in Kentucky during the Civil War.