The tours for the Dickson Williams Mansion are provided by the Greeneville Main Street. The Dickson Williams Mansion tours begin in the lobby of the General Morgan Inn, which is located at: The General Morgan Inn / 111 North Main Street / Greeneville, Tennessee 37743 / Tel: 1-800 223 2679 / Tel: 1- 423 787 1000 / Fax: 1 423 787 1001