Mr. Keen, Tracer of Lost Persons OTR 1944-01-13 "The Case of the Missing Witness" Old Time Radio

Mr. Keen, Tracer of Lost Persons was a show about a private detective, Mr. Keen, who, along with his sidekick, Mike Clancy, tracked down people who had disappeared. It began on the Blue Network in 1937, moving to CBS in 1942. The show moved to a half-hour format in November of 1943. The show enjoyed a long run, ending in 1955.