This folder contains correspondence and other documents relating to the business of the Edison Portland Cement Co. (EPCCo). Among the items for 1919 is a 23-page report by consulting engineer Cornelius C. Vermeule on "Remodelling Steam Plant by Stages," bearing numerous annotations by Edison. Other correspondents include retired EPCCo president Walter S. Mallory; vice president Harold M. Scott, who resigned in September; and Martha M. Darling, a relative of Edward A. Darling, the Stewartsville mill manager who was killed in a plant fire in 1903.

Approximately 50 percent of the documents have been selected. The unselected material includes routine company correspondence, other letters not relating to EPCCo business, and documents pertaining to a phonograph presented to an "old reliable steam engineer," George Kaufman.

Courtesy of Thomas Edison National Historical Park.