The Albeville mss., 1653-1690, consists of documents related to the Glorious Revolution of 1688 in Great Britain, including letters to Marquis d'Albeville Ignatius White, 1626-1694.
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 Aristotle mss., 1603-1704, consists of commentaries on the works of Aristotle. At least half of the volumes concentrate on logic, but other subjects are covered as well, including physics and general philosophy.
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 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 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.
The Boerner mss., 1779-1828, consist of manuscripts, journals, and correspondence by and relating to German writers Caroline von Wolzogen, Oskar Seidlin, and Friedrich von Schiller, along with related research material from German literary scholar and Goethe researcher Peter Boerner.
The Boone mss., 1791-1868, consists of the letters and papers of lawyer, teacher, merchant, and politician Benjamin Pennebaker Douglass, 1820-1904, and his second wife, Queen Victoria Boone, 1837-1885.
The Brediman mss., 1626, consist of documents concerning Thomas Brediman, suspected of high treason and plotting against the King and the Duke of Buckingham.