The Walker, Barclay mss., 1859-1927, consists of musical compositions by Barclay Walker, 1859-1927, an Indiana composer, and by his daughter, Mary Josephine (Walker) Wolff.
The Vonnegut mss. II, 1965-2002, consists of letters of novelist Kurt Vonnegut, Jr., 1922-2007, written to his youngest daughter, artist Nanette (Nanny) Vonnegut, 1954- .
The Thom, James Alexander mss., 1966-2013, consists primarily of writings and correspondence related to Indiana novelist James Alexander Thom's publications.
The Rogers, H.M. mss., 1895-1930, consist of letters from Booth Tarkington, 1869-1946, author, to Herbert Milton Rogers, 1870?-1931, lawyer, of Omaha, Nebraska, and former classmate of Tarkington at Princeton University.
The Hitt mss., 1891-1938, consists primarily of letters from poet James Whitcomb Riley, 1849-1916, to journalist George Cooper Hitt, 1851-1944. George C. Hitt & Co. published Riley's first book, The Old Swimmin'-hole and'Leven More Poems, in 1883.
The Holstein mss., 1892-1916, consist of personal letters from James Whitcomb Riley, 1849-1916, poet, to Charles Louis Holstein, 1843-1901, lawyer, and Mrs. Magdalena (Nickum) Holstein, 1845-1916. Riley lived with the Holsteins at 528 Lockerbie Street, Indianapolis, Indiana for 23 years.
The Riley mss. III, 1876-1917, consist of correspondence and writings of James Whitcomb Riley, 1849-1916, poet from Greenfield, Indiana, who lived on Lockerbie Street in Indianapolis during his adult life.
The Riley mss. V, 1876-1917, consist of the correspondence and writings of James Whitcomb Riley, 1849-1916, poet, born in Greenfield, Indiana. He later lived on Lockerbie Street in Indianapolis, Indiana.
The Bottsford mss., 1877-1885, consists chiefly of letters from poet James Whitcomb Riley, 1849-1916, to fellow poet Clara Louise Bottsford, 1852-1910.