| Cuban Winter League | | |
| Iowa State League | | |
| Pennsylvania Railroad Clerks | | |
| California Winter League | | |
| | |
| American Association | A | Columbus Senators, Indianapolis Indians, Kansas City Blues, Louisville Colonels, Milwaukee Brewers, Minneapolis Millers, St. Paul Saints, Toledo Mud Hens |
| Eastern League | A | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Indians, Providence Grays, Rochester Bronchos, Toronto Maple Leafs |
| Pacific Coast League | A | Los Angeles Angels, Oakland Oaks, Portland Beavers, Sacramento Sacts, San Francisco Seals, Vernon Tigers |
| Southern Association | A | Atlanta Crackers, Birmingham Barons, Chattanooga Lookouts, Memphis Turtles, Mobile Sea Gulls, Montgomery Billikens, Nashville Volunteers, New Orleans Pelicans |
| Western League | A | Denver Grizzlies, Des Moines Boosters, Lincoln Railsplitters, Omaha Rourkes, Sioux City Packers, St. Joseph Drummers, Topeka Jayhawks, Wichita Jobbers/Pueblo Indians |
| | |
| Central League | B | Dayton Veterans, Evansville Strikers/South Bend Bux, Fort Wayne Brakies, Grand Rapids Furniture Makers/Newark Skeeters, South Bend Benders/Grand Rapids Grads, Terre Haute Miners, Wheeling Stogies, Zanesville Potters |
| Connecticut State League | B | Bridgeport Orators, Hartford Senators, Holyoke Papermakers, New Britain Perfectos, New Haven Murlins, Northampton Meadowlarks, Springfield Ponies, Waterbury Champs |
| Illinois-Indiana-Iowa League | B | Danville Speakers, Davenport Prodigals, Dubuque Hustlers, Peoria Distillers, Quincy Infants, Rock Island Islanders, Springfield Senators/Decatur Nomads, Waterloo Boosters |
| New England League | B | Brockton Shoemakers, Fall River Brienies, Haverhill Hustlers, Lawrence Barristers, Lowell Tigers, Lynn Leonardites, New Bedford Whalers, Worcester Busters |
| New York State League | B | Albany Senators, Binghamton Bingoes, Elmira Colonels, Scranton Miners, Syracuse Stars, Troy Trojans, Utica Utes, Wilkes-Barre Barons |
| Northwestern League | B | Portland Pippins, Seattle Giants, Spokane Indians, Tacoma Tigers, Vancouver Beavers, Victoria Bees |
| Texas League | B | Austin Senators, Dallas Giants, Fort Worth Panthers, Galveston Sand Crabs, Houston Buffaloes, Oklahoma City Indians, San Antonio Bronchos, Waco Navigators |
| Tri-State League | B | Altoona Rams, Harrisburg Senators, Johnstown Johnnies, Lancaster Red Roses, Reading Pretzels, Trenton Tigers, Wilmington Chicks, York White Roses |
| | |
| Minnesota-Wisconsin League | C | Duluth White Sox, Eau Claire Commissioners, La Crosse Outcats, Red Wing Manufacturers, Rochester Bears, Superior Red Sox, Wausau Lumberjacks, Winona Pirates |
| Ohio-Pennsylvania League | C | Akron Champs, Canton Deubers, East Liverpool Potters, Erie Sailors, Mansfield Brownies, New Castle Nocks/Sharon Travelers, Steubenville Stubs, Youngstown Steelmen |
| South Atlantic League | C | Albany Babies, Augusta Tourists/Orphans, Charleston Sea Gulls, Columbia Commies, Columbus Foxes, Jacksonville Tarpons, Macon Peaches, Savannah Indians |
| Southern Michigan League | C | Adrian Yeggs, Battle Creek Crickets, Bay City, Flint Vehicles, Jackson Convicts, Kalamazoo Celery Pickers, Lansing Senators, Saginaw Krazy Kats |
| Virginia League | C | Danville Red Sox, Lynchburg Shoemakers, Norfolk Tars, Petersburg Goobers, Richmond Colts, Roanoke Tigers |
| Wisconsin-Illinois League | C | Appleton Papermakers, Aurora Blues, Fond du Lac Mudhens, Green Bay Bays, Madison Senators, Oshkosh Indians, Racine Belles, Rockford Wolverines |
| | |
| Appalachian League | D | Asheville Moonshiners, Bristol Boosters, Cleveland Counts, Johnson City Soldiers, Knoxville Appalachians, Morristown Jobbers |
| Blue Grass League | D | Frankfort Statesmen, Lexington Colts, Maysville Rivermen, Paris Bourbonites, Richmond Pioneers, Winchester Hustlers |
| Canadian League | D | Berlin Green Sox, Brantford Red Sox, Guelph Maple Leafs, Hamilton Kolts, London Cockneys, St. Thomas Saints |
| Carolina Association | D | Anderson Electricians, Charlotte Hornets, Greensboro Patriots, Greenville Spinners, Spartanburg Spartans, Winston-Salem Twins |
| Central Association | D | Burlington Pathfinders, Galesburg Pavers, Hannibal Cannibals, Keokuk Indians, Kewanee Boilermakers, Monmouth Browns, Muscatine Camels, Ottumwa Speedboys |
| Central California League | D | Alameda Alerts, Berkeley Clarions, Elmhurst Tildens/Oakland Carroll Emery Arms, Fruitvale Travelers/Alameda Monday Models, Hayward Cubs, Richmond Merchants, San Leandro Cherry Pickers, Vallejo Pastimes |
| Central Kansas League | D | Clay Center Cubs, Concordia Travelers, Junction City Soldiers, Manhattan Maroons |
| Cotton States League | D | Greenwood Scouts, Hattiesburg Woodpeckers, Jackson Drummers, Meridian White Ribbons, Vicksburg Hill Billies, Yazoo City Zoos |
| Eastern Carolina League | D | |
| Eastern Kansas League | D | |
| Illinois-Missouri League | D | Canton Chinks, Champaign-Urbana Velvets, Clinton Champs, Lincoln Abes, Pekin Celestials, Taylorville Christians |
| Kansas State League | D | El Dorado Crushers, Great Bend Millers, Hutchinson Salt Packers, Larned Wheat Kings, Lyons Lions, McPherson Merry Macks, Newton Railroaders, Wellington Dukes |
| Kentucky-Illinois-Tennessee League | D | Cairo Egyptians, Clarksville Billies, Fulton Colonets, Harrisburg/Jackson Merchants, Hopkinsville Hoppers, McLeansboro Miners/Henderson Hens, Paducah Polecats, Vincennes Hoosiers |
| Michigan State League | D | Boyne City Boosters, Cadillac Chiefs, Holland Wooden Shoes, Manistee Colts, Muskegon Reds, Traverse City Resorters |
| Missouri State League | D | Brookfield Hustlers, Jefferson City Senators, Kirksville Osteopaths, Macon Athletics, Sedalia/Brookfield Cubs |
| Missouri-Iowa-Nebraska-Kansas League | D | Auburn Athletics, Clarinda Antelopes, Falls City Colts, Maryville Comets/Humboldt Infants, Nebraska City Forresters, Shenandoah Pin Rollers |
| Mountain States League | D | Ashland-Catlettsburg Twins, Charleston Senators, Huntington Blue Sox, Ironton Nailers, Montgomery Miners, Point Pleasant-Gallipolis/Middleport-Pomeroy |
| Nebraska State League | D | Columbus Discoverers, Fremont Pathfinders, Grand Island Collegians, Hastings Third Citys, Kearney Kapitalists, Seward Statesmen, Superior Brickmakers, York Prohibitionists |
| Northeast Arkansas League | D | Blytheville, Helena, Jonesboro Zebras, Paragould Scouts |
| Northern State of Indiana League | D | Bluffton Babes, Huntington Indians, Lafayette Farmers, Logansport/Anderson Whitecaps, Marion Boosters, Wabash Rockeries |
| Ohio State League | D | Chillicothe Infants, Hamilton Mechanics, Lancaster Lanks, Lima Cigarmakers, Marion Diggers, Newark Newks/Piqua Picks, Portsmouth Cobblers, Springfield Reapers |
| San Joaquin Valley League | D | Coalinga Tigers, Hanford Braves, Lemoore Cubs, Porterville Orange Pickers, Tulare Merchants, Visalia Colts |
| Southeastern League | D | Anniston Models, Decatur Twins, Gadsden Steel Makers, Huntsville Westerns, Rome Hillies, Selma Centralites |
| Southwest Texas League | D | Bay City Rice Eaters, Beeville Orange Growers, Brownsville Brownies, Corpus Christi Pelicans, Laredo Bermudas, Victoria Rosebuds |
| Texas-Oklahoma League | D | Altus Chiefs, Ardmore Blues, Bonham Boosters, Cleburne Railroaders, Durant Educators, Gainesville Blue Ribbons, Lawton Medicine Men, Wichita Falls Irish Lads |
| Tidewater League | D | Elizabeth City, Hampton, Newport News, Old Point Comfort, Portsmouth, Suffolk |
| Twin States League | D | Bellows Falls Sulphites, Brattleboro Islanders, Keene Champs, Springfield-Charlestown Hyphens |
| Union Association | D | Boise Irrigators, Butte Miners, Great Falls Electrics, Helena Senators, Missoula, Salt Lake City Skyscrapers |
| Washington State League | D | Centralia Pets, Chehalis Proteges, Raymond Venetians, South Bend River Rats |
| Western Association | D | Coffeyville White Sox, Fort Smith Scouts, Independence Packers, Joplin Miners, Muskogee Redskins, Sapulpa Oilers, Springfield Jobbers, Tulsa Railroaders |
| Western Canada League | D | Brandon Angels, Calgary Bronchos, Edmonton Eskimos, Moose Jaw Robin Hoods, Saskatoon Berrypickers, Winnipeg Maroons |
| | |
| Cuban General League | Foreign | Almendares Park, America Park, Habana Park |
| Cuban League | Foreign | |
| Cuban National League | Foreign | Almendares, Fe, Habana |
| Cuban-American Major League Clubs Series | Foreign | Almendares Park, Havana Park, New York Giants, Philadelphia Phillies |
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