Hard to stick to just five in my opinion, and I am sure that I am missing some... I think pretty much all of the following were better than Andy Cooper
Home Run Johnson
Oliver Marcelle
Alejandro Oms
Dick Lundy
John Donaldson
Minnie Minoso (a little like Monte Irvin - MLB stats miss his first few years of stats as they were in Cuba/NL)
Longer shots (but, personally favorites of mine):
Clint Thomas
Dobie Moore
Nip Winters
Frank Duncan
Spotwood Poles
George Scales
Wild Bill Wright (especially Mexican career)
Dick Redding
Bruce Petway
Tetelo Vargas
Duncan and Petway will likely suffer from "too many catchers", though I do believe that is was the strongest position for negro league players.
As others have said, Buck O'Neil is a no brainier for contributions and it is a shame that it will happen posthumously. I think that Ed Bolden will get in as an executive.
Regardless, it is hard to imagine that other entries of the Hall of Fame would NOT come from the list of players already considered. You can see the full list and see helpful links to the players here:
http://www.baseball-reference.com/bu...agues_Election
you may also find these sources helpful:
http://www.beyondtheboxscore.com/200...league-players
http://seamheads.com/blog/2013/08/29...-hall-of-fame/
http://johndonaldson.bravehost.com/pdf/00237.pdf
http://mlb.mlb.com/news/print.jsp?ym...=mlb&fext=.jsp
And of course, I started to post some videos on YouTube that document some of these players on Cuban cards. Fascinated topic (to me at least)!
Here is a link to a new project that I am doing that include cards of some of the players mentioned here and on the links:
https://www.youtube.com/channel/UCBi...xNtlijS0aGCpEw