Most of the ones I'd name are already on the list, but:-
Allston (If Stackpole qualifies, I'd name his fellow X-Wing author too...)
Duane (Yes, Young Wizards...but also Trek novels, even an X-COM one!)
Ford (as in John M., who did a couple of Star Trek novels and pretty much invented the pre-TNG Klingons. You know the 'Battlecruiser Vengeance' TV show stuff in Symphony of the Sword? That's a reference to Ford's material, pretty much presented straight.)Foster (Yes, Alan Dean Foster does a lot of tie-in stuff, but I genuinely like some of it)
Schmitz (as in James H. - one of the authors Baen's republication of classic stuff introduced me to.)
Anvil (Christopher Anvil - see above.)
Leinster (And another one.)
Pratchett (Yes, he's an SF author - he's written two pure SF novels.)
Haldeman (Forever War)
-- Acyl
Allston (If Stackpole qualifies, I'd name his fellow X-Wing author too...)
Duane (Yes, Young Wizards...but also Trek novels, even an X-COM one!)
Ford (as in John M., who did a couple of Star Trek novels and pretty much invented the pre-TNG Klingons. You know the 'Battlecruiser Vengeance' TV show stuff in Symphony of the Sword? That's a reference to Ford's material, pretty much presented straight.)Foster (Yes, Alan Dean Foster does a lot of tie-in stuff, but I genuinely like some of it)
Schmitz (as in James H. - one of the authors Baen's republication of classic stuff introduced me to.)
Anvil (Christopher Anvil - see above.)
Leinster (And another one.)
Pratchett (Yes, he's an SF author - he's written two pure SF novels.)
Haldeman (Forever War)
-- Acyl