Correspondence, and administrative, financial and production records of the Crystal Salt Company, Warsaw, New York. Includes letterbooks, articles of incorporation, contracts, deeds, stock shares and insurance policies, annual reports, account books, bankbooks and check stubs, invoices, purchasing, receiving and sales and shipping records. Also includes several Charles Beard letters, and correspondence of Howard Lee McBain, Professor of Political Science, George Washington University.

Account books for the Ellicottville Office in Cattaraugus County; correspondence and records including amounts paid on principal and interest, general expenditures, notes on improvements, and other material including land contracts and deed books for Allegany, Cattaraugus, Chautauqua, and Wyoming Counties. Includes records kept by purchasers of Holland Land Company holdings Nicholas Devereux and Co., Utica, N.Y. and the Farmers' Loan and Trust Co., New York City.

Letters written by Civil War soldier William Dalrymple McKerrow, primarily to his wife and son, Willie, while he served with Company C, First Regiment New York State Dragoons from 1862 to 1865. One letter is from McKerrow to Horatio Hodge, a business associate in Arcade.