The Papers of Ulysses S. Grant were published in 31 volumes by Southern Illinois University Press between 1967 and 2009. These materials contain thousands of letters written by Ulysses S. Grant (1837-1885), and to him; his military and presidential documents; and a small number of photographs. These manuscripts are extensively annotated to explain their significance. There is also an extended calendar synopsis of letters in each volume. In total, this is the largest and most comprehensive published collection of Ulysses S. Grant correspondence available for scholarly use.