I have a book written by Ted Sare who was a guide for Jim Owen in the 40's. A great read if you can still find one
Ted mentioned the Peck bait often. In fact, one story he tells, he mentioned that Mr. Peckenpaugh, the originator of the bait, came to Branson for a float, as he did on many occasions. On this trip though he happen to ask the guide if he could make the bait better. The guide said to put a guinea feather on it. Soon after that they came with feathers.
Other favorite plugs mentioned besides the Peck were jitterbug, paw paw, a hawk. The latter two were not described and I haven't researched them to see. Well he did mention the paw paw looked like a paw paw. Which would be of a banana shape.
The fishing with minnows as you describe, they called still fishing.