J.C. Wright Caverns was a pre-dark natural attraction, and was used as the general as his lair after fleeing Mexico. Ryan and his Companions defeated him and took one of his wags as a spoil of war. (Rider, Reaper)
There are many large underground caverns in New Mexico, any of which may have been the inspiration for J.C. Wright Caverns. The largest of which is Carlsbad Caverns. The name JC Wright is quite common, but no connections toLaurence James has yet to be found.