Thanks, Grant, I do remember I researched this before and that the originals had fallen into the hands of the Government. I had hoped that someone had blazed this trail before me. I'm sure that getting copies from the Smithsonian is extremely difficult purely from the standpoint of dealing with the bureaucracy. I can only imagine what red tape ensnares those drawings. It seems to me that I also found some other information in the library at WSU in Wichita, KS which sounded interesting, but never followed up on it.
Thanks again for responding and if the club members can rally together on this they may have more influence in getting copies from the Gov, especially when the FAA demands "acceptable data" and none is available concerning these older aircraft.