This series was broadcast on the New England NBC radio stations in 1934, then it became a full
NBC Radio Network series from February 4, 1935 to July 11, 1935. From September 30, 1935 to 1937
it was broadcast on CBS. From January 3, 1938 to June 3, 1938, it was broadcast on Mutual, then
NBC from September 26, 1938 to July 29, 1939. From September 13, 1943 to July 16, 1948 it was
broadcast on ABC. The New England 1934 series starred Bob Burlen as Tracy. Matt Crowley, Barry
Thompson and Ned Weaver played Tracy from 1940 to 1943.