Identifying all the 1960s QBs from jahsoul357's profile pic

And here's a trivia question for you. Try guessing without going to the Internet. When Green Bay and Baltimore played each other in the years 1963 through 1965, how many playing would be voted into the Hall of Fame (not to mention head coaches Vince Lombardi and Don Shula on the sideline)?

If you want to guess, don't look at the next post.