The Boston Blackie radio series, also starring Morris, began June 23, 1944, on NBC as a summer replacement for Amos ‘n’ Andy. Sponsored by Rinso, the series continued until September 15 of that year. Unlike the concurrent films, Blackie had a steady romantic interest in the radio show: Lesley Woods appeared as Blackie’s girlfriend Mary Wesley. Harlow Wilcox was the show’s announcer. On April 11, 1945, Richard Kollmar portrayed Blackie in a radio series syndicated by Frederick Ziv to Mutual and other network outlets. Over 200 episodes of this series were produced between 1944 and October 25, 1950. Other sponsors included Lifebuoy Soap, Champagne Velvet beer and R&H beer. While investigating mysteries, Blackie invaribly encountered harebrained Police Inspector Farraday (Maurice Tarplin) and always solved the mystery to Farraday’s amazement. Initially, friction surfaced in the relationship between Blackie and Farraday, but as the series continued, Farraday recognized Blackie’s talents and requested assistance. Blackie dated Mary Wesley (Jan Miner), and for the first half of the series, his best pal Shorty was always on hand. The humorless Farraday was on the receiving end of Blackie’s bad puns and word play.
Link- Boston Blackie Wikipedia