The Allen mss., 800-1972, consists of manuscript pieces collected by William Edward David Allen, 1901-1973, foreign service officer, businessman, and author, and his own writings about Georgian history.
The Augustan mss., 1688-1748, consists of manuscripts and correspondence collected by Indiana University Professor William T. Morgan, 1922-1945, relating to the Age of Queen Anne.
The Binkley, Raglind mss., 1450-1842, consist of medieval fragments collected by lutenist Thomas Binkley, 1931-1995, and his wife, Raglind Herrel Binkley, 1940-.
The Blair, M.A.I. mss., 1684-1897, consists of letters and documents collected by art collector and benefactor Mary Anne Italia Mitchell Blair, 1855-1940.
The Calverley mss., 1359-18/19th cent., consist of Arabic manuscripts collected by Edwin Elliott Calverley, 1882-1971, professor of Arabic and Islamic studies, whose notes about the documents are occasionally found inscribed thereon.