Hunziker, Otto Frederick (1940). The Butter Industry, 3rd edition. La Grange, Illinois: Otto Frederick Hunziker, 1940

The John Cleland papers include materials on the Purdue University College of Agriculture and dairy making in Indiana, with a focus on the Purdue University Creamery. Materials include pre-publication manuscripts written by Cleland, Purdue Swiss-type cheese recipes, and artifacts related to the Purdue University Creamery, including: cheese and butter wrapper labels; a glass milk bottle and paper bottle caps; and a cottage cheese container.

Also included are a can of Purdue Hybrid pop corn, a program for the 58th annual meeting of the American Dairy Science Association held at Purdue, and three publications by former Purdue faculty members:

Norman, Hubert E. Van (1908). First Lessons in Dairying. New York, New York: Orange Judd Company.

Hunziker, Otto Frederick (1940). The Butter Industry, 3rd edition. La Grange, Illinois: Otto Frederick Hunziker.

Hunziker, Otto Frederick (1949). Condensed Milk and Milk Powder, 7th edition. La Grange, Illinois: Otto Frederick Hunziker.