My pal, the Reverend Robert Neily, sent me a note about radio series that eventually turned into films.
He sent a link to the Wikipedia article, which I had never seen until now. The article provides some info I wasn't aware of (I never knew the Nelson family did a film based on the TV/radio series) but it also is bereft of many other films (many Lum and Abner films are missing, for an example.) Still, an eye-opening article. (It also fails to mention the upcoming 'The Lone Ranger' film.)