yeah, I kinda barely remember before Greyhawk myself. I think the very first character I ran there was only Fighting Man, Cleric, and Magic User as options. Stuff evolved fast back then. It IS notable, the thief is a pure Gary addition, and seems much more influenced by Lankhmar than the 3 initial classes which I'm pretty sure Dave created. The Ranger, which definitely has 'Aragorn' written all over it, was also a non-Gary creation that appeared in SR or maybe one of the very first TDs, I forget exactly. Not that Dave was overly fixed on LotR either, his Druid and Assassin classes from Blackmoor are definitely drawn from other sources, though I'm not sure EXACTLY where. I don't recall a pre-D&D fantasy work that has a 'druid' in it, though such characters as Merlin certainly are suggestive of pre-Roman religious sources.