Reuben A. Whitmore (hermit)

Reuben A. Whitmore (July 23, 1857 - February 16, 1935) was an American hermit, sometimes referred to as the Catoctin Hermit (after the Catoctin Mountain) or Buffalo Bill, notably a long-time resident of the wilderness around Rocky Ridge, along Fishing Creek, in Frederick County, Maryland.

Whitmore claimed in March of 1897, after being arrested and brought into the City of Frederick, to have devised a perpetual motion machine, prior to his being committed to the Montevue Hospital, from which he was subsequently released just over a week later. In his later years, he returned to society, coming to reside near Lewistown, Maryland, where he was the victim of an assault and robbery by two unidentified individuals in July of 1929.