My apologies, I appear to have caused a conundrum here...
I saw the following statement at the bottom of Barbara's post:
"NOTE: MEMBERSHIP IN THE CLUB IS MANDATORY FOR PARTICIPATION. JOIN ONLINE WITH CREDIT CARD AT WWW.KFCLUB.COM OR COMPLETE THE ATTACHED APPLICATION AND MAIL WITH CHECK/MONEY ORDER."
I inferred this meant that only members were allowed to attend a convention. If that was an incorrect inference then that was a bad job by me.
I then made the (I thought) reasonable suggestion that a convention should be open anyone who wanted to attend in the belief it was a better policy to potentially attract new interest in the cars, and possibly new owners/members to the club.
Mike then posted:
"you do NOT need to be a member to attend any KFOCI Convention or Division/Regional meet."
And at that point I thought the matter resolved.
Further clarification from Jack shows that to have your car judged, or to participate in any club events/activities means you must be a member, but to simply attend, see the cars, talk to people, buy from vendors, you do not need to be a member.
Case closed in my view.