Mr. Keen, Tracer Of Lost Persons

Mr. Keen, Tracer of Lost Persons was one of radio's longest running shows, airing (October 12, 1937 to April 19, 1955), continuing well into the television era. It was produced by Frank and Anne Hummert. The sponsors included Whitehall Pharmacal (as in Anacin, Kolynos Toothpaste, BiSoDol antacid mints, Hill's cold tablets and Heet liniment), Dentyne, Aerowax, RCA Victor and Chesterfield cigarettes. It aired on the NBC Blue network until 1947, when it switched to CBS.

Bennett Kilpack began as Mr. Keen in 1937 with Phil Clarke stepping into the role late in the series. For 18 years the kindly Keen and his faithful assistant, Mike Clancy (Jim Kelly), entertained followers with their intuitive perception that kept listeners coming back for more. With 1690 nationwide broadcasts, Mr. Keen was the most resilient private detective in a namesake role. The nearest competitors were Nick Carter, Master Detective (726 broadcasts), The Adventures of Sherlock Holmes (657) and The Adventures of the Falcon (473).[1] However, only 59 of those 1690 Mr. Keen programs are known to exist.

Richard Leonard directed scripts by Barbara Bates, Stedman Coles, Frank Hummert, Lawrence Klee and Bob Shaw. James Fleming and Larry Elliott were the announcers. Al Rickey's band provided the background music, including the program's theme, "Someday I'll Find You."