This article describes a case in 1887 of "double consciousness" experienced by Ansel Bourne, a 61-year-old preacher from Rhode Island. The author argues that Ansel suffered from a post-epileptic partial loss of memory, resulting in the formation of a secondary identity named A.J. Brown. Several first hand accounts of the man's condition are included, providing rich descriptions of his behavior and cognitive dysfunctions. References are made to childhood depression and possible abuse. The author cites several cases that reported epileptic seizures as the cause of double consciousness. He suggests hypnosis and "suggestive therapeutics" may cure double consciousness.