| Cuban Winter League | | |
| Central New York League | | |
| Chicago City League | | |
| Illinois-Iowa League | | |
| Michigan State League | | |
| 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 Climbers, 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 |
| | |
| Central League | B | Dayton Veterans, Evansville River Rats, Fort Wayne Billikens, Grand Rapids Raiders, South Bend Bronchos, Terre Haute Stags, Wheeling Stogies, Zanesville Potters |
| Connecticut State League | B | Bridgeport Orators, Hartford Senators, Holyoke Papermakers, New Britain Perfectos, New Haven Prairie Hens, Northampton Meadowlarks, Springfield Ponies, Waterbury Finnegans |
| Illinois-Indiana-Iowa League | B | Bloomington Bloomers, Danville Speakers, Davenport Prodigals, Dubuque Dubs, Peoria Distillers, Rock Island Islanders, Springfield Senators, Waterloo Boosters |
| New England League | B | Brockton Shoemakers, Fall River Indians, Haverhill Hustlers, Lawrence Colts, Lowell Tigers, Lynn Shoemakers, 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 | Seattle Giants, Spokane Indians, Tacoma Tigers, Vancouver Beavers |
| Tri-State League | B | Altoona Rams, Harrisburg Senators, Johnstown Johnnies, Lancaster Red Roses, Reading Pretzels, Trenton Tigers, Williamsport Millionaires, York White Roses |
| | |
| Ohio-Pennsylvania League | C | Akron Champs, Canton Deubers, East Liverpool Potters, Erie Sailors, Mansfield Reformers, McKeesport Tubers, New Castle Nocks, Youngstown Steelmen |
| South Atlantic League | C | Augusta Tourists, Columbia Gamecocks, Columbus Foxes, Jacksonville Jays, Macon Peaches, Savannah Indians |
| Texas League | C | Dallas Giants, Fort Worth Panthers, Galveston Sand Crabs, Houston Buffaloes, Oklahoma City Indians, San Antonio Bronchos, Shreveport Pirates, Waco Navigators |
| Virginia League | C | Danville Red Sox, Lynchburg Shoemakers, Norfolk Tars, Portsmouth Truckers/Petersburg Goobers, Richmond Colts, Roanoke Tigers |
| Western Association | C | Bartlesville Boosters, El Reno Packers, Enid Railroaders, Guthrie Senators, Joplin Miners, Muskogee Navigators, Sapulpa Oilers, Tulsa Oilers |
| Wisconsin-Illinois League | C | Appleton Papermakers, Aurora Islanders, Fond du Lac Giants, Green Bay Bays, Madison Senators, Oshkosh Indians, Racine Belles, Rockford Reds |
| | |
| Blue Grass League | D | Frankfort Statesmen, Lexington Colts, Paris Bourbonites, Richmond Pioneers, Shelbyville/Maysville Rivermen, Winchester Hustlers |
| California State League | D | Fresno Tigers, Oakland Invaders/Merced Fig Growers, Sacramento Baby Senators, San Francisco Baby Seals, San Jose Prune Pickers, Stockton Millers |
| Carolina Association | D | Anderson Electricians, Charlotte Hornets, Greensboro Champs, Greenville Spinners, Spartanburg Spartans, Winston-Salem Twins |
| Central Association | D | Burlington Pathfinders, Galesburg Pavers, Hannibal Cannibals, Keokuk Indians, Kewanee Boilermakers, Monmouth Browns, Ottumwa Packers, Quincy Vets |
| Central California League | D | Heraldsburg/San Leandro Grapevines, Napa, Petaluma/Elmhurst Incubators, Richmond Merchants, San Rafael/Hayward/Fruitvale, Santa Rosa Prune Pickers/Alameda Bracketts/Oakland/Berkeley Bas, St. Helena/Fruitvale/Alameda Alerts, Vallejo |
| Central Kansas League | D | Abilene Reds, Beloit/Chapman, Clay Center Cubs, Concordia Travelers, Ellsworth Blues, Junction City Soldiers, Manhattan Maroons, Salina Trade Winners |
| Connecticut Association | D | Middletown Jewels, New London Whalers, Norwich Bonbons/Meriden Doublins, Willimantic Colts |
| Cotton States League | D | Greenwood Chauffeurs, Hattiesburg Timberjacks, Jackson Tigers, Meridian White Ribbons, Vicksburg Hill Billies, Yazoo City Zoos |
| Eastern Carolina League | D | Fayetteville Highlanders, Goldsboro Giants, Raleigh Red Birds, Rocky Mount Railroaders, Wilmington Sailors, Wilson Tobacconists |
| Eastern Kansas League | D | Hiawatha Boosters, Holton/Blue Rapids, Horton, Marysville, Sabetha, Seneca |
| Illinois-Missouri League | D | Beardstown/Jacksonville Jacks, Canton Chinks, Clinton Champs, Lincoln Abes, Macomb Potters, Pekin Celestials |
| Indiana-Michigan League | D | Berrien Springs Grays, Dowagiac, Elkhart Blue Sox, Gary Sand Fleas, Ligonier, Niles Blues |
| Kansas State League | D | Arkansas City Grays, Great Bend Millers, Hutchinson Salt Packers, Larned Wheat Kings, Lyons Lions, McPherson Merry Macks, Newton Railroaders, Wellington Dukes |
| Kentucky-Illinois-Tennessee League | D | Clarksville Volunteers, Harrisburg Miners, Hopkinsville Hoppers, McLeansboro Billikens, Paducah Indians, Vincennes Alices |
| Minnesota-Wisconsin League | D | Duluth White Sox, Eau Claire Commissioners, La Crosse Outcats, Red Wing Manufacturers, Rochester Roosters, Superior Red Sox, Wausau Lumberjacks, Winona Pirates |
| Missouri-Iowa-Nebraska-Kansas League | D | Auburn Athletics, Clarinda Antelopes, Falls City Colts, Maryville Comets, Nebraska City Forresters, Shenandoah Pin Rollers |
| Nebraska State League | D | Columbus Discoverers, Fremont Pathfinders, Grand Island Collegians, Hastings Brickmakers, Kearney Kapitalists, Red Cloud Cloud, Seward Statesmen, Superior Brickmakers |
| Northeast Arkansas League | D | Blytheville, Caruthersville, Jonesboro Zebras, Paragould Scouts |
| Northern Association | D | Clinton Teddies, Decatur Commodores, Elgin Kittens, Freeport Pretzels, Jacksonville Jacks, Joliet Jolly-ites/Sterling Infants, Kankakee Kays, Muscatine Pearl Finders |
| Northern State of Indiana League | D | Bluffton Babes, Huntington Johnnies, Lafayette Farmers, Logansport Whitecaps, Marion Boosters, Wabash Rockeries |
| Ohio State League | D | Chillicothe Infants, Lancaster Lanks, Lima Cigarmakers, Marion Diggers, Newark Newks, Portsmouth Cobblers |
| San Joaquin Valley League | D | Bakersfield Drillers, Coalinga Savages, Tulare Merchants, Visalia Pirates |
| Southeastern League | D | Asheville Moonshiners, Gadsden Steel Makers, Johnson City Soldiers, Knoxville Appalachians, Morristown Jobbers, Rome Romans |
| Southern California Trolley League | D | Long Beach Clothiers, Los Angeles Maiers, Los Angeles McCormicks, Pasadena Silk Sox, Redondo Beach Sand Dabs, Santa Ana Walnut Growers |
| Southern Illinois League | D | Eldorado, Harrisburg Merchants, Herrin, McLeansboro Merchants, Mount Vernon Merchants |
| Southern Michigan League | D | Adrian Yeggs, Battle Creek Crickets, Bay City, Flint Vehicles, Jackson Convicts, Kalamazoo Kazoos, Lansing Senators, Saginaw Wa-was |
| Southwest Texas League | D | Bay City Rice Eaters, Beeville Orange Growers, Brownsville Brownies, Corpus Christi Pelicans, Laredo Bermudas, Victoria Rosebuds |
| Virginia Valley League | D | Ashland-Catlettsburg Twins, Charleston Senators, Huntington, Montgomery Miners, Parkersburg Parkers, Point Pleasant-Gallapolis |
| Washington State League | D | Aberdeen Black Cats, Chehalis Gophers, Hoquiam Loggers, Montesano Farmers, Raymond Cougars, Tacoma Cubs |
| West Michigan League | D | Cadillac Chiefs, Holland Wooden Shoes, Muskegon Speed Boys, Traverse City Resorters |
| West Virginia League | D | Clarksburg Bees, Fairmont Champions, Grafton, Mannington |
| Western Canada League | D | Brandon Angels, Calgary Bronchos, Edmonton Eskimos, Lethbridge Miners, Medicine Hat Mad Hatters/Saskatoon Berrypickers, Moose Jaw Robin Hoods, Regina Bone Pilers, Winnipeg Maroons |
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| Cuban General League | Foreign | Almendares, Fe, Habana |
| Cuban League | Foreign | |
| Cuban-American Major League Clubs Series | Foreign | Almendares, Detroit Tigers, Habana, Philadelphia Athletics |
| Cuban-American Negro Clubs Series | Foreign | Almendares, Chicago Leland Giants, Habana |
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