Mr. Keen - low profile detective program

Mr. Keen, Tracer of Lost Persons probably does not get the credit it deserves among the stable of radio detective programs. It ran from 1937 to 1955. The shows were pretty well done, but Keen was such a low-key personality that the plots did not quite have the zip of some of the other shows. Nonetheless, it was consistent and enjoyable. Obviously, if it ran that long, a lot of people must have liked it.