ANA Past Presidents and other autographs. Can you help shed some light on these signatures?

Howdy!
I picked these two notes up at a coin show and noticed some ANA past presidents autographed them.
John Jay Pittman ANA President 1971-1973
Virginia Culver ANA President 1973-1975
Other names are legible but I've not been around long enough to know who these folks are.
Can anyone help shed some light on the signatures featured on these two notes?
On the first note, there is a faint green over-stamp with a palm tree. Looks like Oct. and Convention. The circle shows the word Beach, but it doesn't look like Long Beach.
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Comments
Grover was an ANA official and CSA dealer.
Eva Adams was a Mint Director.
Margo was head of Coin World.
I'm sorry I don't have anything to add, but those are really cool. ANA conventions were in Miami in 1974 (too early, my first ANA) and Honolulu in 1981. I don't think for any other convention locations Palm trees would make sense. So might rule out ANA conventions.
Cool, very interesting !!!
I think I see Eva Adams (twice) former U.S. Mint Director and maybe Grover Criswell.
Maybe Art Kagan?
I think that big green stamp in the background is a Long Beach rubber stamp from years ago (1970s)?
You can see a life preserver with the word "Beach" in the right corner (away/ opposite side from the Palm Tree). The Life Preserver carries over into the modern Long Beach Expo Logo.
Mint director Stella Hackel on the back.
A lot of names I do not recognize and I was working for either Coin WOrld or the ANA at the time, so they must have been people associated with the Long Beach SHow that I only ever went to once.