Bennett Kilpac

Mr. Keen, Tracer of Lost Persons was a 15-minute serial that was one of radio’s
longest running shows, from (October 12, 1937 to April 19, 1955). It aired on the
NBC Blue network until 1947, when it switched to CBS. The program was produced
by Frank and Anne Hummert. Mr. Keen and Mike Clancy were primarily homicide detectives. Bennett Kilpac (above) was the longest-running Mr. Keen; Philip Clarke
took over late in the run. and Jim Kelly was Mike Clancy. The series sponsors
included Whitehall Pharmacal Company, Dentyne, Aerowax, RCA Victor and
Chesterfield cigarettes.