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 Alströmer mss., 1779-1784 and 1865, consists of a series of French newsletters addressed in a number of instances to naturalist Clas Alströmer, 1736-1794, of Gothembourg, Sweden.
The Astle mss., 1795-1797, consists of the letters and memoranda of Andrew Stuart, 1725-1801, Scottish lawyer, to Thomas Astle, 1735-1801, English antiquary and paleographer.
The Bingham, W. mss., 1752-1891, consist of the correspondence, writings, personal and business papers of American statesman William Bingham, 1752-1804.
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.