Records for the Milwaukee Road, Amtrak, and the B&O railroads, with some materials from the Elgin, Joliet and Eastern (EJ&E), the Central Railroad of New Jersey (CNJ), the Nickel Plate Railroad (NKP), and Acheson, Topeka and Santa Fe (AT&SF) lines from the 1880s to the early 1990s.

Family papers, including adoption papers, a civil war discharge, and information on the Crosby Sliding Door Jack, including a patent application.

Legal papers, diplomas, certificates of appointments, scrapbook, 2 issues of Keosauqua, Iowa, newspapers (1852-58), and other papers.

Benjamin Shambaugh (1871-1940) was a University of Iowa professor of political science and, for many years, superintendent of the State Historical Society of Iowa. He and his wife, Bertha (1870-1953), hosted many scholars' visits to the University.

Methodist minister and moving force behind the organization of schools at Eldora and Mitchellville. Included are certificates of Corkhill's appointment of trustee of Iowa Reform School and an account book relating to his expenses as trustee as well as a holograph commonplace book containing the text of a diary of his experience in the Civil War, commissioned by Governor Samuel Kirkwood. This diary also contains poems and clippings. Also included is a CD of a transcription of the diary, plus a commentary on the text of over 150 pages, including background information and photographs.

Iowa state legislator and railroad employee. Photographs, certificates, and a scrapbook all of which relate to his legislative career.