| Cuban Winter League | | |
| Independent Negro | | Brooklyn Cuban Giants, Chicago Giants, Colored All-stars, Eastern All-stars, Evansville Giants, Ewing's All-stars, Harrisburg Giants, Havana Red Sox, Nashville Elite Giants, Pennsylvania Red Caps of NY, Philadelphia Colored Giants of NY, Philadelphia Quaker City Giants, Philadelphia Tigers, Pittsburgh Crawfords, St. Louis Giants |
| Southwestern League | | |
| Texas Association | | |
| Tri-State League | | |
| Wisconsin State League | | |
| California Winter League | | |
| | |
| American Association | AA | Columbus Senators, Indianapolis Indians, Kansas City Blues, Louisville Colonels, Milwaukee Brewers, Minneapolis Millers, St. Paul Saints, Toledo Mud Hens |
| International League | AA | Baltimore Orioles, Buffalo Bisons, Jersey City Skeeters, Montreal Royals, Newark Bears, Reading Keystones, Rochester Red Wings, Toronto Maple Leafs |
| Pacific Coast League | AA | Hollywood Stars, Los Angeles Angels, Mission Reds, Oakland Oaks, Portland Beavers, Sacramento Senators, San Francisco Seals, Seattle Indians |
| | |
| Eastern League | A | Albany Senators, Bridgeport Bears, Hartford Senators, New Haven Profs, Pittsfield Hillies, Providence Grays, Springfield Ponies, Waterbury Brasscos |
| Southern Association | A | Atlanta Crackers, Birmingham Barons, Chattanooga Lookouts, Little Rock Travelers, Memphis Chickasaws, Mobile Bears, Nashville Volunteers, New Orleans Pelicans |
| Texas League | A | Beaumont Exporters, Dallas Steers, Fort Worth Panthers, Houston Buffaloes, San Antonio Bears, Shreveport Sports, Waco Cubs, Wichita Falls Spudders |
| Western League | A | Amarillo Texans, Denver Bears, Des Moines Demons, Oklahoma City Indians, Omaha Crickets, Pueblo Steelworkers, Tulsa Oilers, Wichita Larks |
| | |
| Central League | B | Akron Tyrites, Canton Terriers, Dayton Aviators, Erie Sailors, Fort Wayne Chiefs, Springfield Buckeyes |
| Illinois-Indiana-Iowa League | B | Bloomington Bloomers, Danville Veterans, Decatur Commodores, Evansville Hubs, Peoria Tractors, Quincy Indians, Springfield Senators, Terre Haute Tots |
| New England League | B | Attleboro Burros, Brockton Shoemakers, Haverhill Hillies, Lewiston Twins, Lynn Papooses, Manchester Blue Sox, Portland Mariners, Salem Witches |
| New York-Pennsylvania League | B | Binghamton Triplets, Elmira Colonels, Harrisburg Senators, Scranton Miners, Syracuse Stars, Wilkes-Barre Barons, Williamsport Grays, York White Roses |
| South Atlantic League | B | Asheville Tourists, Augusta Tygers, Charlotte Hornets, Columbia Comers, Greenville Spinners, Knoxville Smokies, Macon Peaches, Spartanburg Spartans |
| Southeastern League | B | Albany Nuts, Columbus Foxes, Jacksonville Tars, Montgomery Lions, Pensacola Flyers, Savannah Indians, Selma Cloverleafs, Tampa Krewes |
| Virginia League | B | Norfolk Tars, Petersburg Broncos, Portsmouth Truckers, Richmond Colts |
| | |
| Middle Atlantic League | C | Charleroi Babes, Clarksburg Generals, Cumberland Colts, Fairmont Black Diamonds, Jeannette Jays, Johnstown Johnnies, Scottdale Scotties, Wheeling Stogies |
| Piedmont League | C | Durham Bulls, Greensboro Patriots, High Point Pointers, Raleigh Capitals, Salisbury-Spencer Colonials, Winston-Salem Twins |
| Utah-Idaho League | C | Boise Senators, Idaho Falls Spuds, Ogden Gunners, Pocatello Bannocks, Salt Lake City Bees, Twin Falls Bruins |
| Western Association | C | Fort Smith Twins, Independence Producers, Joplin Miners, Muskogee Chiefs, Springfield Midgets, Topeka Jayhawks |
| | |
| Anthracite League | D | |
| Arizona State League | D | Bisbee Bees, Miami Miners, Phoenix Senators, Tucson Waddies |
| Blue Ridge League | D | Chambersburg Maroons, Frederick Hustlers, Hagerstown Hubs, Hanover Raiders, Martinsburg Blue Sox, Waynesboro Red Birds |
| California State League | D | |
| Cotton States League | D | Alexandria Reds, Gulfport Tarpons, Hattiesburg Pinetoppers, Jackson Senators, Laurel Cardinals, Meridian Mets, Monroe Drillers, Vicksburg Hill Billies |
| Eastern Carolina League | D | Fayetteville Highlanders, Goldsboro Manufacturers, Greenville Tobacconists, Kinston Eagles, Rocky Mount Buccaneers, Wilmington Pirates |
| Eastern Shore League | D | Cambridge Canners, Crisfield Crabbers, Easton Farmers, Northampton Red Sox, Parksley Spuds, Salisbury Indians |
| Florida State League | D | Daytona Beach Islanders, Fort Lauderdale Tarpons/St. Petersburg Saints, Miami Hustlers, Orlando Colts, Sanford Celeryfeds, West Palm Beach Sheriffs |
| Georgia-Alabama League | D | Anniston Nobles, Carrollton Frogs, Cedartown Sea Cows, Gadsden Eagles, Lindale Dragons, Talladega Indians |
| Lone Star League | D | Corsicana Oilers, Mexia Gushers, Palestine Pals, Paris Colts/Rustlers, Texarkana Twins, Tyler Trojans |
| Mississippi Valley League | D | Burlington Bees, Cedar Rapids Bunnies, Dubuque Dubs, Marshalltown Ansons, Moline Plowboys, Ottumwa Packers, Rock Island Islanders, Waterloo Hawks |
| Nebraska State League | D | Beatrice Blues, Fairbury Jeffersons, Grand Island Champs, Lincoln Links, McCook Generals, Norfolk Elks, North Platte Buffaloes, York Dukes |
| Texas Valley League | D | Brownsville, Corpus Christi Seahawks, McAllen, Mission Grapefruits |
| West Texas League | D | Abilene Aces, Coleman Bobcats, Hamlin Pied Pipers/Big Spring Springers, Lubbock Hubbers, Midland Colts, San Angelo Red Snappers |
| | |
| Cuban League | Foreign | |
| | |
| Mexican League | Independent | |
| | |
| Negro Southern League | Negro | |
| Texas Negro League | Negro | |
| | |
| Eastern Colored League | Negro Majors | Atlantic City Bacharach Giants, Baltimore Black Sox, Brooklyn Royal Giants, Cuban Stars East, Homestead Grays, New York Lincoln Giants, Philadelphia Hilldale Giants |
| Negro National League | Negro Majors | Birmingham Black Barons, Chicago American Giants, Cleveland Tigers, Cuban Stars West, Detroit Stars, Kansas City Monarchs, Memphis Red Sox, St. Louis Stars |