Allsup's is a 24-hour chain that sells fuel under the Shell, Fina, ConocoPhillips, Exxon and Allsup's On the Go brands.
Helper had been built for the West Cornwall Railway in 1873 by William Allsup of Preston as the Sir Francis Drake.
Music and poetry were highlights of the festival, which featured performers Leon Rausch, Tommy Allsup and the Texas Playboys; Mel Tillis and the Statesiders; Larry Gatlin; Billy Mata, and Liz Talley.
After a show in Clear Lake, Iowa, Holly chartered a plane for himself, Allsup and Jennings to avoid a long bus trip to Fargo, North Dakota.