Who is the most important figure not in the National Baseball Hall of Fame?

Daniel Lucius “Doc” Adams, M.D.

“He (Doc Adams) is baseball’s most important figure not in the Hall of Fame.”

“With the recent discovery of his “Laws of Base Ball” we have tangible primary evidence of his genius. More than anyone else, he created our game of nine innings, nine men, and ninety-foot base paths.”

5 Inventors“, Our Game John Thorn, Official Historian of Major League Baseball