The National Amateur Baseball Federation was founded at an organizational meeting in Louisville, Kentucky in 1914. It is the oldest national amateur baseball organization in existence and the first amateur baseball group to require membership by league, rather than by individual teams.

Year after year since 1914, in times of peace and prosperity, despite two World Wars, the Great Depression and several recessions, the National Amateur Baseball Federation has operated continuously, providing the on-field excitement of the NABF national tournament games.

The NABF is a nonprofit organization run by a number of Officers and Directors from all parts of the United States. These volunteers help keep the organization running smoothly while regional and national championship tournaments are held coast to coast.

The Charles M. Blackburn Major Division World Series is being co-hosted by the Lombard Orioles and Beecher Muskies of the Chicago Suburban Baseball League. Games will be played in two beautiful western suburbs of Chicago: the city of Naperville, home to North Central College, and the cit of Wheaton, home to Wheaton College.  Those flying into Chicago for the World Series will be served well by either Chicago's O'Hare Airport (located on the northwest side of Chicago) or Midway Airport (located on the soutside of Chicago). 

This year's World Series will include twelve teams divided into three pools:

• Two co-hosts: Beecher Muskies & Lombard Orioles
• 2024 Champion: The Diesel (Buffalo, NY)
• 2023 Champion: Berea (OH) Blue Sox

• The winner of the Hackensack NJ Regional

• The winner of the Buffalo NY Regional

• The winner of the Fort Wayne IN Regional

• The winner of the Portland IN Regional

• The winner of the Manistee, MI Regional

• The winner of the Youngstown OH Regional

• The winner of the New Lenox, IL Regional

• The champion of the Cranbery (MA) Baseball League