There is a non-national honor society being used in some councils as a Venturing counterpart to OA, "Corps of Discovery", and I think it takes the Lewis and Clark type angle, but could easily fit with whatever early pioneers or explorers visited a given area.
Boy Scouts itself is loosely modeled on military patterns, so I don't see an honor society along military lines making sense, particularly given BSA's non-militaristic attitude. On the other hand, the one period of military history that lends itself very well to honor societies, would be a quasi-Medieval pattern, so using knighthood a