I think that club is the forerunner of the current one from Kansas/Oklahoma that is the founder and organizer of the current Mid-America meets?
I think the SOA came first, then when that died SAAC filled the void and the "Mid-America" was the basic function of that organization?
In a way it exists because of this central, "fly over us" resentment of the coasts, also unwittingly contributed to by SAAC, with it's national convention location formula, so to speak and formed their own "convention" as the Mid-America meet. Very successfully.
Basically, the Jim Wicks group.