Tags
- Abingdon, Virginia
- All-American Girls Professional Baseball League
- American Association
- American League
- Arizona Fall League
- Atlantic League of Professional Baseball
- Australian Baseball League
- Baseball
- Baseball research
- California League
- Caribbean Series
- Carolina League
- Central League
- Chambersburg, Pennsylvania
- Chinese Professional Baseball League
- Class A
- Class D
- Cleveland Guardians
- Continental League
- Cuban National Series
- Cumberland, Maryland
- Detroit Tigers
- Dominican Professional Baseball League
- Dominican Summer League
- Double-A
- Dutch Ulrich
- Earl Howard
- Eastern League
- Eden, North Carolina
- Elkin, North Carolina
- Federal league
- Florida State League
- Frederick, Maryland
- Frederick News-Post
- Frontier League
- Galax, Virginia
- Gettysburg, Pennsylvania
- Hack Wilson
- Hagerstown Hubs
- Hagerstown, Maryland
- Hanover, Pennsylvania
- Honkbal Hoofdklasse
- Independent baseball league
- International League
- International Standard Book Number
- KBO League
- Lenoir, North Carolina
- Liga de BĂ©isbol Profesional Roberto Clemente
- Major League Baseball
- Martinsburg, West Virginia
- Maryland
- Mexican League
- Midwest League
- Minor League Baseball
- Mount Airy
- Mount Airy, North Carolina
- National League
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- New York Yankees
- Nippon Professional Baseball
- North Carolina
- Northwest League
- North Wilkesboro, North Carolina
- Pacific Coast League
- Pacific League
- Pennsylvania
- Philadelphia Athletics
- Pioneer League
- Players' League
- Radford, Virginia
- Salem, Virginia
- Society for American Baseball Research
- South Atlantic League
- Southern League
- St. Louis Cardinals
- Texas League
- Triple A
- Union Association
- Venezuelan Professional Baseball League
- Virginia
- Wall Street Crash of 1929
- Washington Senators
- Waynesboro, Pennsylvania
- Western League
- West Virginia
- Wytheville, Virginia