Great categorizing, Snowdog!
Another old school fan here . . . the battered old paperbacks from my college days lean haphazardly together on my bookshelf, touching covers with Diet for a Small Planet, another book from back then. I'm sorry to have lost the old buttons of that era in my many moves - but here are a few of them for your perusal:
Frodo lives!
I would concur with the need for a sixties subsection as proposed by Child.
~*~ Pio