Here's one I have never heard of. Ranger Bill was a long-running Christian radio program from the Moody Bible Institute. It aired from 1950 to 1964, moving in 1956 from a 15-minute program to a half hour. The program has been syndicated and is supposed still running somewhere.
Ranger Bill Jefferson (Miron Canaday)is the chief forest ranger in the small town of Knotty Pine, somewhere alone the edge of the Rockies. He lives with his mother. Ranger Bill is "a well-built leader capable of accomplishing nearly anything." Bill works with "Stumpy" Jenkins (also Miron Canaday), "the Old Timer," who is an ace marksman prone to telling jokes. Another forest ranger is Gray Wolf (Ed Ronne, Sr.), a Dakota Indian who speaks broken English; Gray Wolf serves as a bridge between modern forestry practices and the traditional ways of his people. Henry Scott is Bill's teenage ward who helps out with many of the ranger's tasks.
In this undated episode, Bill gets secret orders to escort Hal Dever to the Army Proving grounds to test a bomb timing device. Hal has been ignoring his son Jim. Jim takes the timer, accidently setting it off. Tick, tick, tick...
A Confession: I just stumbled across this on YouTube and have not listened to the episode. I probably never will. (Back when I was a little lad, I saw one episode of Davey and Goliath and have never recovered. Brrr.) In case you are braver than I, here's the link: