Police Officer David Smith, of Pittsburgh, Pa., was startled a few mornings ago by what at first appeared to be an apparition from the other world. A nearer approach showed that the figure was Miss Louise Liebendorfer, clad only in a nightgown and slippers. She had left her home while in a somnambulatistic state, and going to the top of the Knoxville incline, had walked along the steep trestle work to the bottom of the track and then along Carson Street, where Officer Smith met and awakened her. She was taken to the police station, where clothing as supplied with which to go home.

National Police Gazette, January 17, 1891.