| Colombian Winter League |
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Indios, Torices Tigers, Vanytor, Willard Blues |
| Cuban Winter League |
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Almendares, Cienfuegos, Havana, Marianao |
| Dominican Winter League |
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| Mexican Pacific Coast League |
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Ciudad Obregon, Culiacan, Guadalajara, Hermosillo, Mazatlan, Navojoa |
| Mexican Pacific Winter League |
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| Occidental Winter League |
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Cabimas, Espadon, Gavilanes, Pastora |
| Panama Winter League |
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Carta Vieja Yankees, Chesterfield Smokers, Spur Cola |
| Puerto Rican Winter League |
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Caguas-Guayama, Mayaguez-Aguadilla, Ponce, San Juan, Santurce |
| Venezuelan Winter League |
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Caracas, Magallanes, Santa Maria, Venezuela Patriots |
| Veracruz Winter League |
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Cordoba, Jalapa, Mexico City Aztecas, Mexico City Reds, Poza Rica Oilers, Puebla Parrots |
| Saskatchewan League |
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| All-American Girls Professional Baseball League |
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Fort Wayne Daisies, Grand Rapids Chicks, Kalamazoo Lassies, Rockford Peaches, South Bend Blue Sox |
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| Pacific Coast League |
Open |
Hollywood Stars, Los Angeles Angels, Oakland Oaks, Portland Beavers, Sacramento Solons, San Diego Padres, San Francisco Seals, Seattle Rainiers |
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| American Association |
AAA |
Charleston Senators, Columbus Red Birds, Indianapolis Indians, Kansas City Blues, Louisville Colonels, Minneapolis Millers, St. Paul Saints, Toledo Sox |
| International League |
AAA |
Buffalo Bisons, Havana Sugar Kings, Montreal Royals, Ottawa A's, Richmond Virginians, Rochester Red Wings, Syracuse Chiefs, Toronto Maple Leafs |
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| Southern Association |
AA |
Atlanta Crackers, Birmingham Barons, Chattanooga Lookouts, Little Rock Travelers, Memphis Chickasaws, Mobile Bears, Nashville Volunteers, New Orleans Pelicans |
| Texas League |
AA |
Beaumont Exporters, Dallas Eagles, Fort Worth Cats, Houston Buffaloes, Oklahoma City Indians, San Antonio Missions, Shreveport Sports, Tulsa Oilers |
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| Eastern League |
A |
Albany Senators, Allentown Cardinals, Binghamton Triplets, Elmira Pioneers, Reading Indians, Schenectady Blue Jays, Wilkes-Barre Barons, Williamsport Grays |
| South Atlantic League |
A |
Augusta Rams, Charlotte Hornets, Columbia Reds, Columbus Cardinals, Jacksonville Braves, Macon Peaches, Montgomery Rebels, Savannah A's |
| Western International League |
A |
Calgary Stampeders, Edmonton Eskimos, Lewiston Broncs, Salem Senators, Spokane Indians, Tri-City Braves, Vancouver Capilanos, Victoria Tyees,
Wenatchee Chiefs, Yakima Bears |
| Western League |
A |
Colorado Springs Sky Sox, Denver Bears, Des Moines Bruins, Lincoln Chiefs, Omaha Cardinals, Pueblo Dodgers, Sioux City Soos, Wichita Indians |
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| Big State League |
B |
Austin Pioneers, Bryan/Del Rio Indians, Corpus Christi Clippers, Galveston White Caps, Harlingen Capitals, Temple Eagles, Tyler Tigers, Waco Pirates |
| Carolina League |
B |
Burlington-Graham Pirates, Danville Leafs, Durham Bulls, Fayetteville Highlanders, Greensboro Patriots, High Point-Thomasville Hi-Toms, Reidsville Luckies, Winston-Salem Twins |
| Florida International League |
B |
Miami Beach Flamingos/Greater Miami Flamingos, Miami Sun Sox, St. Petersburg Saints, Tallahassee Rebels, Tampa Smokers, West Palm Beach Indians |
| Illinois-Indiana-Iowa League |
B |
Burlington Bees, Cedar Rapids Indians, Evansville Braves, Keokuk Kernels, Peoria Chiefs, Quincy Gems, Terre Haute Phillies, Waterloo White Hawks |
| Piedmont League |
B |
Colonial Heights-Petersburg Colts, Hagerstown Packets, Lancaster Red Roses, Lynchburg Cardinals, Newport News Dodgers, Norfolk Tars, Portsmouth Merrimacs, York White Roses |
| Tri-State League |
B |
Anderson Rebels, Asheville Tourists, Greenville Spinners, Knoxville Smokies, Rock Hill Chiefs, Spartanburg Peaches |
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| Arizona-Texas League |
C |
Bisbee-Douglas Copper Kings, Cananea Mineros, El Paso Texans, Juarez Indios, Mexicali Eagles, Nogales Yaquis, Phoenix Stars, Tucson Cowboys |
| California League |
C |
Bakersfield Indians, Channel Cities Oilers, Fresno Cardinals, Modesto Reds, Salinas Packers, San Jose Red Sox, Stockton Ports, Visalia Cubs |
| Cotton States League |
C |
El Dorado Oilers, Greenville Tigers, Hot Springs Bathers, Meridian Millers, Monroe Sports, Pine Bluff Judges |
| Evangeline League |
C |
Alexandria Aces, Baton Rouge Red Sticks, Crowley Millers, Lafayette Oilers, Lake Charles Lakers, New Iberia Pelicans, Port Arthur Sea Hawks, Texas City/Thibodaux Pilots |
| Longhorn League |
C |
Artesia Numexers, Big Spring Broncs, Carlsbad Potashers, Midland Indians, Odessa Oilers, Roswell Rockets, San Angelo Colts, Wichita Falls/Sweetwater Spudders |
| Mountain States League |
C |
Harlan Smokies, Kingsport Cherokees, Lexington Colts, Maryville-Alcoa/Morristown Twins, Middlesboro Athletics, Morristown Red Sox, Oak Ridge Pioneers |
| Northern League |
C |
Aberdeen Pheasants, Duluth Dukes, Eau Claire Braves, Fargo-Moorhead Twins, Grand Forks Chiefs, St. Cloud Rox, Superior Blues, Winnipeg Goldeyes |
| Pioneer League |
C |
Billings Mustangs, Boise Pilots, Great Falls Electrics, Idaho Falls Russets, Magic Valley Cowboys, Ogden Reds, Pocatello Bannocks, Salt Lake City Bees |
| Provincial League |
C |
Drummondville A's, Quebec Braves, Sherbrooke Indians, St. Jean Canadians, Thetford Mines Miners, Trois-Rivieres Phillies |
| West Texas-New Mexico League |
C |
Abilene Blue Sox, Albuquerque Dukes, Amarillo Gold Sox, Borger Gassers, Clovis Pioneers, Lubbock Hubbers, Pampa Oilers, Plainview Ponies |
| Western Association |
C |
Blackwell Broncos, Hutchinson Elks, Iola Indians, Joplin Cardinals, Muskogee Giants, Ponca City Jets, St. Joseph Saints, Topeka Owls |
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| Alabama-Florida League |
D |
Andalusia-Opp Indians, Crestview Braves, Dothan Rebels, Fort Walton Beach Jets, Graceville Oilers, Panama City Fliers |
| Appalachian League |
D |
Bluefield Blue-Grays, Bristol Twins, Johnson City Cardinals, Pulaski Phillies, Welch Miners, Wytheville Statesmen |
| Florida State League |
D |
Cocoa Indians, Daytona Beach Islanders, DeLand Red Hats, Jacksonville Beach Sea Birds, Lakeland Pilots, Orlando C.B.s |
| Georgia State League |
D |
Douglas Trojans, Dublin Irish, Hazlehurst-Baxley Cardinals, Sandersville Wacos, Statesboro Pilots, Vidalia Indians |
| Georgia-Florida League |
D |
Albany Cardinals, Americus-Cordele Orioles, Brunswick Pirates, Fitzgerald Redlegs, Thomasville Dodgers, Tifton Indians, Valdosta Tigers, Waycross Bears |
| Kentucky-Illinois-Tennessee League |
D |
Fulton Lookouts, Hopkinsville Hoppers, Jackson Generals/Central City Reds, Madisonville Miners, Mayfield Clothiers, Owensboro Oilers, Paducah Chiefs, Union City Dodgers |
| Mississippi-Ohio Valley League |
D |
Clinton Pirates, Danville Dans, Decatur Commodores, Dubuque Packers, Hannibal Cardinals, Mattoon Phillies, Mount Vernon Kings, Paris Lakers |
| Pennsylvania-Ontario-New York League |
D |
Bradford Phillies, Corning Red Sox, Erie Senators, Hamilton Cardinals, Hornell Dodgers, Jamestown Falcons, Olean Giants, Wellsville Braves |
| Sooner State League |
D |
Ada Herefords/Cementers, Ardmore Cardinals, Gainesville Owls, Lawton Braves, McAlester Rockets, Pauls Valley Raiders, Seminole Oilers, Shawnee Hawks |
| Tar Heel League |
D |
Hickory Rebels, Marion Marauders, Rutherford County Owls, Shelby Clippers |
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| Cuban League |
Foreign |
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| Japan Central League |
Foreign |
Chunichi Dragons, Hiroshima Carp, Kokutetsu Swallows, Osaka Tigers, Taiyo-Shochiku Robins, Yomiuri Giants |
| Japan Pacific League |
Foreign |
Daiei Stars, Hankyu Braves, Kintetsu Pearls, Mainichi Orions, Nankai Hawks, Nishitetsu Lions, Takahashi Unions, Toei Flyers |
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| Mandak League |
Independent |
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| Mexican League |
Independent |
Mexico City Azul, Mexico City Diablos Rojos, Monterrey Sultanes, Nuevo Laredo Tecolotes, Veracruz Aguila, Yucatan Leones |
| Quebec Provincial League |
Independent |
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| Negro American League |
Negro |
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