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 Bissonette mss., 1855-1862, consist of letters and documents primarily of Joseph Bissonette, trader and frontiersman, from Nebraska Territory, relating to claims for losses incurred from depredations committed by the Indians.
The Blackwood mss., 1852-1887, consists of letters to Sir Stevenson Arthur Blackwood, 1832-1893, postal official and reformer, and to his mother, Cecilia Georgiana Byng Blackwood, 1802-1881.
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 Blair mss., 1843-1881, consists of letters and papers of Montgomery Blair, 1813-1883, lawyer and postmaster general in the cabinet of President Abraham Lincoln, 1809-1865.
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.