Richard Leonard

About Mr. Keen, Tracer of Lost Persons

• The King Cobra Murder Case May 4, 1950 · director
• The Case of Murder and the Missing Car May 11, 1950 · director
• The Quicksand Murder Case June 1, 1950 · director
• The Case of Murder and the Strange Woman July 20, 1951 · director
• The Photograph Album Murder Case July 27, 1951 · director
• The Abandoned Well Murder Case August 10, 1951 · director
• The Silver Candlestick Murder Case March 13, 1952 · director
• The Rented Cottage Murder Case April 3, 1952 · director