This group of approximately 1,000 letters from the papers of Hamilton Fish, Sr. relates to the business, functioning, and activities of Columbia College in the 19th century. The letters include those addressed to Fish and those written by him. The earliest material bears on Fish's activities and interests at about the time he graduated from Columbia, but the majority of the letters fall into the latter part of his life, many being written by and to Fish as Chairman of the Board of Trustees of Columbia College. The collection includes correspondence with presidents Charles King, F.A.P. Barnard, and Seth Low of Columbia College, also with Edmund Bailey, Charles Davies, Charles W. Harper, William M. Sloan, William C. Schermerhorn, and others. The majority of the letters are original manuscripts and typescripts, but many of the letters from Fish are photostatic and typed copies. Most of the letters are tipped onto manila sheets. Included are two diaries of Mr. Fish's European travels, 1856-1857. There is also a box of printed materials relating primarily to the settlement of the Alabama Claims.