Mr. Keen, Tracer of Lost Persons

One of the longest-running radio programs of the Golden Age of Radio was Mr. Keen, Tracer of Lost Persons. While it was a fairly good detective/mystery progam, it certainly was not nearly as captivating as some of its competition. The title role was that of an elderly gentleman whose personality was not dynamic nor his methods spectacular. Still, the show ran for 17 1/2 years. They must have done something right.