On second thought, Biljo contributed more to the growth of underground comics and could be replaced.
Don and Maggie Thompson-Publishers of Comic Art and editors the Comic Buyers Guide.
Roy Thomas-Co-creator of Alter-Ego, editor and writer at Marvel and current editor of Alter-Ego
Jerry Bails and G.B. Love for creating early comic buyers fanzines like Comicollector and Rockets Blast which were combined.
Alan Light-Editor/Publisher of the Buyers Guide which held everything together for years before the electronic age.
Bob Overstreet-OK, he gave everything a price, maybe not always right but it was a lot of information before the Grand Comic Database (which was created by Jerry Bails)
Probably should mention Howard Keltner for his comics book index and Jerry for the Who's Who.
What other projects? Microfilm (Jerry), Microfiche (don't remember). Reprints (so many)?
These guys helped the hobby grow. It has been more of a rugby match than an intellectual pursuit. Probably need to add the inventor of eBay and management at CGC if we want an electronic update to the list.