This folder contains correspondence and other documents pertaining to Edison's former laboratory in Menlo Park, New Jersey, and to real estate matters in that vicinity, where he continued to own land. Most of the items for 1918 relate to taxes. There is also a blueprint map showing lots sold to Mary J. Carman in July 1916. The correspondents include Richard W. Kellow of Thomas A. Edison, Personal, and William Carman, a former Edison accountant who handled the Menlo Park property interests. Courtesy of Thomas Edison National Historical Park.