The Ellison mss. II, 1857-1940, consist of copies of articles, talks, extracts, etc. that were duplicates in the Ellison collection at the Harold B. Lee Library of Brigham Young University in Provo, Utah.
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 Cook mss., 1850-1877, consists of letters from David S. Cook in California to his family and friends in Illinois, and letters to James Willson Temple, 1828- , farmer, writer, from his family in Illinois while he was in California.
The Crawford mss., 1849-1864, consists of letters and papers of captain, Quartermaster's department, United States volunteers, and member of the Oregon legislature Medorem Crawford, 1819-1891.
The Drake mss., 1848-1849, consists of the letters of physician Daniel Drake, 1785-1852, to his children, copied by U.S. senator Charles Daniel Drake, 1811-1892.