As usual, last names only are fine. You get the years they played as a hint, but possibly more useful is that the answers are in alphabetical order, so as you fill in the names, you'll get a better idea of what the remaining gaps start with.
Your Saturday Sporcle: Cooperstown Candidates
The results of the 2014 Hall of Fame balloting will be announced on Wednesday. But do you know all the players on this year's ballot?