The Robert Taylor Preston Papers consists of 218 letters, military orders, notes, certificates of military appointments, and other items, collected or created by Preston between 1849 and 1871, with the majority from the period between May 1861 and December 1862during the American Civil War. The materials include several military orders signed by such members of the Confederate Army as Jubal Early, John B. Floyd, and George E. Pickett, as well as orders written by Preston himself. Also included is a manuscript draft of a broadside written by Preston from Solitude on May 13, 1863, as a call to arms to the men of Roanoke and Montgomery County to repel the Union Army which was in the immediate vicinity; and a pardon signed by President Andrew Jackson on September 10, 1865, granting Preston amnesty for his offenses committed in the recent rebellion.