MinorLeagueSource.com Blog
Minor League Baseball History
Quest to visit every major and minor league baseball team
Pictures I have taken of major and minor league baseball stadiums
Information about the 2025 season and links to official sites of minor league teams
Information on Player Development Licenses and when they expire with each team.
Listen to my appearance on the Beer City Baseball Podcast - January 21, 2021.
Read my interview on Legends On Deck.
Read articles that I've written on Baseball Ink and BaseballGuru.com.
Complete List of Minor Leagues
Triple-A
International League, Eastern League (1902-1911), known as Triple-A East in 2021
Pacific Coast League, known as Triple-A West in 2021
Double-A
Eastern League, New York-Pennsylvania League (1923-1937), known as Double-A Northeast in 2021
Southern League, South Atlantic League (1946-1963), known as Double-A South in 2021
Texas League, known as Double-A Central in 2021
High-A
Midwest League, Mississippi-Ohio Valley League (1949-1955), Illinois State League (1947-1948), known as High-A Central in 2021
Northwest League, Western International League (1946-1954), known as High-A West in 2021
South Atlantic League, Western Carolinas League (1963-1979), Western Carolina League (1960-1962), known as High-A East in 2021
Single-A
Carolina League, known as Low-A East in 2021
Florida State League, known as Low-A Southeast in 2021
California League, known as Low-A West in 2021
Defunct Leagues:
Alabama-Florida League Class
D (1936-1939), Alabama State League (1940-1941)
Alabama-Florida League
Class D (1951-1962), Alabama State League (1946-1950)
Alabama State League Class
D (1940-1941), Alabama-Florida League (1936-1939)
Alabama State League Class
D (1946-1950), Alabama-Florida League (1951-1962)
Alabama-Tennessee League
Class D (1921)
American Association Class
A (1903-1911), Class AA (1912-1945), Class AAA (1946-1962)
American Association Class AAA
(1969-1997)
Appalachian League Class D
(1911-1914)
Appalachian League Class D
(1921-1925)
Appalachian League Class D
(1937-1955)
Appalachian League Class D (1957-1962), Rookie Classification (1963-2020)
Arizona-Mexico League Class
D (1955-1958), Arizona-Texas League (1952-1954)
Arizona State League Class
D (1928-1930), Arizona-Texas League (1931-1932)
Arizona-Texas League Class
D (1931-1932), Arizona State League (1928-1930)
Arizona-Texas League Class
D (1937-1939), Class C (1940-1941)
Arizona-Texas League
Class C (1947-1950), Southwest International League (1951-1952)
Arizona-Texas League Class
D (1952-1954), Arizona-Mexico League (1955-1958)
Arkansas-Missouri League
Class D (1936-1940), Arkansas State League (1934-1935)
Arkansas State League Class
D (1908-1909)
Arkansas State League
Class D (1934-1935), Arkansas-Missouri League (1936-1940)
Arkansas-Texas League Class
D (1906)
Atlantic Association Class
D (1908)
Atlantic League Class D (1914),
New York-New Jersey League (1913)
Bi-State League (IL-WI) Class D (1915)
Bi-State League (NC-VA) Class D (1934-1942)
Big State League Class B (1947-1957)
Blue Grass League Class D (1908-1912)
Blue Grass League Class D (1922-1924)
Blue Ridge League (PA-MD-WV) Class D (1915-1918)
Blue Ridge League (PA-MD-WV) Class D (1920-1930)
Blue Ridge League (NC-VA) Class D (1946-1950)
Border League Class D (1912-1913)
Border League Class C (1946-1951)
Buckeye League Class D (1915)
California League Class C (1941-1942)
California State League Class D (1910)
California State League
Class D (1913-1915)
California State League Class D (1929)
Canadian League Class D (1905)
Canadian League Class D (1911), Class C (1912-1913), Class B (1914-1915)
Canadian-American League Class C (1936-1942)
Canadian-American League Class C (1946-1951)
Cape Breton Colliery League Class D (1937-1938), Class C (1939)
Carolina Association Class D (1908-1912), North Carolina State League (1913-1917)
Central Association Class D (1908-1917), Iowa State League (1904-1907)
Central Association Class C (1947-1949)
Central League Class B (1903-1917)
Central League Class B (1920-1922)
Central League Class C (1926)
Central League Class B (1928-1930)
Central League Class B (1932)
Central League Class B (1934)
Central League Class A (1948-1951)
Central California League
Class D (1910-1911)
Central International League
Class C (1912), Northern League (1913-1917)
Central Kansas League Class
D (1908-1912), Kansas State League (1913-1914)
Central Texas League Class
D (1914-1917)
Coastal Plain League Class
D (1937-1941)
Coastal Plain League Class
D (1946-1952)
Colonial League Class C (1914)
Colonial League Class B (1947-1950)
Connecticut Association
Class D (1910)
Connecticut League Class
D (1902-1904), Class B (1905-1912), Eastern Association (1913-1914)
Copper Country Soo League
Class D (1905), Northern-Copper Country League (1906-1907)
Cotton States League Class
D (1902-1908)
Cotton States League Class
D (1910-1913)
Cotton States League Class
D (1922-1932)
Cotton States
League Class C (1936-1941)
Cotton States League Class
C (1947-1955)
Dakota League Class D (1921-1922),
South Dakota League (1920,1923)
Delta League Class D (1904)
Dixie League (AL-GA) Class D (1916-1917)
Dixie League (AR-LA-MS-TX) Class C (1933), East
Dixie League (1934-1935), West Dixie League (1934-1935)
East Dixie League Class C (1934-1935),
Dixie League (1933)
East Texas League Class D (1916)
East Texas League Class D (1923-1926)
East Texas League Class D (1931)
East Texas League Class C (1936-1940)
East Texas League Class C (1946)
East Texas League Class C (1949-1950)
Eastern Association Class B (1913-1914), Connecticut League (1902-1912)
Eastern League Class B (1916-1918), Class A (1919-1932)
Eastern Canada League Class B (1922-1923)
Eastern Carolina League Class D (1908-1910)
Eastern Carolina League Class D (1928-1929)
Eastern Illinois League Class D (1907-1908)
Eastern Kansas League Class D (1910)
Eastern Shore League Class D (1922-1928)
Eastern Shore League Class D (1937-1941)
Eastern Shore League Class D (1946-1949)
Empire State League Class
D (1913), Georgia State League (1914-1915), Florida-Alabama-Georgia League
(1915)
Evangeline League Class D (1934-1942)
Evangeline League Class D (1946-1948),
Class C (1949-1957)
Far West League Class D (1948-1951)
Florida-Alabama-Georgia League
Class D (1915), Empire State League (1913), Georgia State League (1915)
Florida East Coast League Class D (1940-1942)
Florida International League Class C (1946-1948), Class B (1949-1954)
Florida State League Class D (1919-1920), Class C (1921-1924), Class D (1925-1928)
Florida State League Class D (1936-1941)
Georgia-Alabama League Class D (1913-1917)
Georgia-Alabama League Class D (1928-1930)
Georgia-Alabama League Class D (1946-1951)
Georgia-Florida League Class D (1935-1942)
Georgia-Florida League Class D (1946-1958)
Georgia-Florida League Class D (1962), Class A (1963)
Georgia State League Class D (1906)
Georgia State League Class D (1914-1915), Empire State League (1913), Florida-Alabama-Georgia League (1915)
Georgia State League Class D (1920-1921)
Georgia State League Class D (1948-1956)
Gulf Coast League Class D (1907-1908)
Gulf Coast League Class D (1926)
Gulf Coast League Class C (1950),
Class B 1951-1953
Gulf States League Class A (1976), Lone Star League (1977)
Hudson River League Class D (1903), Class C (1904-1907)
Illinois-Iowa-Indiana (Three-I) League Class B (1902-1917)
Illinois-Iowa-Indiana (Three-I) League Class B (1919-1932)
Illinois-Iowa-Indiana (Three-I) League Class B (1935)
Illinois-Iowa-Indiana (Three-I) League Class B (1937-1942)
Illinois-Iowa-Indiana (Three-I) League Class B (1946-1961)
Illinois-Missouri League Class D (1908-1914)
Illinois State League Class D (1947-1948), Midwest League (1956-present), Mississippi-Ohio Valley League (1949-1955)
Indiana-Michigan League Class D (1910)
Indiana-Ohio League Class D (1908)
Inland Empire League Class D (1908)
Inter-Mountain League Class D (1909)
International League Class D (1908)
Interstate Association Class C (1906)
Interstate League Class D (1905-1908)
Interstate League Class D (1913)
Interstate League Class D (1914-1916)
Interstate League Class D (1932)
Interstate League Class C (1939), Class B (1940-1952)
Iowa-South Dakota League Class D (1902-1903)
Iowa State League Class D (1904-1907), Central Association (1908-1917)
Kansas-Oklahoma-Missouri (KOM) League Class D (1946-1952)
Kansas State League Class
D (1905-1906)
Kansas State League Class
D (1909-1911)
Kansas State League Class
D (1913-1914), Central Kansas League (1908-1912)
Kentucky-Illinois-Tennessee (Kitty) League Class D (1903-1906)
Kentucky-Illinois-Tennessee (Kitty) League Class D (1910-1914)
Kentucky-Illinois-Tennessee (Kitty) League
Class D (1916)
Kentucky-Illinois-Tennessee (Kitty) League Class D (1922-1924)
Kentucky-Illinois-Tennessee (Kitty) League Class D (1935-1942)
Kentucky-Illinois-Tennessee (Kitty) League Class D (1946-1955)
Lone Star League Class D (1927-1929)
Lone Star League Class C (1947-1948)
Lone Star League Class A (1977),
Gulf States League (1976)
Longhorn League Class D (1947-1950),
Class C (1951-1955), Sophomore League (1958-1961), Southwestern League
(1956-1957)
Louisiana State League Class
D (1920)
Maine State League Class D (1907)
Michigan-Ontario League
Class B (1919-1926)
Michigan State League Class D (1902)
Michigan State League Class D (1911-1914), West Michigan League (1910)
Michigan State League Class C (1940-1941)
Middle Atlantic League Class C (1925-1942)
Middle Atlantic League Class C (1946-1951)
Middle Texas League Class D (1914-1915)
Minnesota-Wisconsin League Class D (1909-1910,1912), Class C (1911), Northern League (1908)
Mississippi State League Class D (1921)
Mississippi Valley League Class D (1922-1932), Class B (1933)
Mississippi-Ohio Valley League Class D (1949-1955), Midwest League (1956-present), Illinois State League (1947-1948)
Missouri-Iowa-Nebraska-Kansas (MINK) League Class D (1910-1913)
Missouri State League Class D (1911)
Missouri Valley League Class D (1902-1903), Class C (1904), Western Association (1905-1911)
Missouri Valley League Class C (1905)
Mountain State League Class D (1937-1941), Class C (1942)
Mountain States League Class D (1911-1912)
Mountain States League Class D (1948-1953), Class C (1954)
Nebraska State League Class D (1910-1915)
Nebraska State League Class D (1922-1923)
Nebraska State League Class D
(1928-1938), Western League (1939-1941)
Nebraska State League Class
D (1956-1959)
New Brunswick-Maine League
Class D (1913)
New England League Class B
(1902-1915)
New England League Class B (1919)
New England League Class B (1926-1930)
New England League Class B (1933), Northeastern League (1934)
New England League Class B (1946-1949)
New York-New Jersey League Class D (1913), Atlantic League (1914)
New York-Pennsylvania League Class B (1923-1932), Class A (1933-1937), Eastern League (1938-present)
New York-Pennsylvania League Class D (1957-1962), Class A (1963-2020), Pennsylvania-Ontario-New York (PONY) League (1939-1956)
New York State League Class B (1902-1917)
North Atlantic League Class D (1946-1950)
North Carolina League Class C (1902)
North Carolina State League Class D (1913-1917), Carolina Association (1908-1912)
North Carolina State League Class D (1937-1942)
North Carolina State League Class D (1945-1952), Tar Heel League (1953-1954)
North Dakota League Class D (1923)
North Texas League Class D (1905)
North Texas League Class D (1907)
Northeast Arkansas League Class D (1909-1911)
Northeast Arkansas League Class D (1936-1941)
Northeastern League Class B (1934), New England League (1933)
Northern Association Class
D (1910)
Northern League
Class D (1903-1905), Northern-Copper Country League (1906-1907)
Northern League Class
D (1908), Minnesota-Wisconsin League (1909-1912)
Northern League Class C (1913-1916),
Class D (1917), Central International League (1912)
Northern League Class D (1933-1940),
Class C (1941-1942)
Northern League Class C (1946-1962), Class A (1963-1971)
Northern-Copper Country League Class C (1906), Class D (1907), Copper Country Soo League (1905), Northern League (1903-1905)
Northern State of Indiana League Class D (1909-1911)
Northwest International League Class B (1919), Pacific Coast International League (1918,1920-1921), Western International League (1922)
Northwestern League Class B (1905-1917)
Ohio-Indiana League Class D (1948-1951)
Ohio-Pennsylvania League Class C (1905-1911), Class D (1912)
Ohio State League Class D (1908-1916)
Ohio State League Class D (1936-1941)
Ohio State League Class D (1944-1947)
Oklahoma-Arkansas-Kansas (OAK) League Class D (1907), Oklahoma-Kansas League (1908)
Oklahoma-Kansas League
Class D (1908), Oklahoma-Arkansas-Kansas League (1907)
Oklahoma State League Class
D (1912)
Oklahoma State League Class
D (1922-1924)
Ontario League Class C (1930)
Oregon State League Class D (1904)
Pacific Coast International League Class B (1918,1920-1921), Northwest International League (1919), Western International League (1922)
Pacific National League Class A (1903), Class B (1904), Pacific Northwest League (1902)
Pacific Northwest League Class B (1902), Pacific National League (1903-1904)
Palmetto League Class D (1931)
Panhandle-Pecos Valley League Class D (1923), West Texas League (1920-1922)
Pennsylvania-Ohio-Maryland (POM) League Class D (1906-1907)
Pennsylvania-Ontario-New York (PONY) League (1939-1956), Class D (1939-1956), New York-Pennsylvania League (1957-2020)
Pennsylvania State Association Class D (1934-1942)
Pennsylvania-West Virginia League Class D (1908-1909)
Piedmont League Class D (1920), Class C (1921-1931), Class B (1932-1955)
Pioneer League Class C (1939-1942)
Pioneer League Class C (1946-1962), Rookie Classification (1963-2020)
Potomac League Class D (1916)
Provincial League Class C (1950-1955)
Quebec-Ontario-Vermont League
Class B (1924)
Quebec Provincial League
Class B (1940)
Rio Grande Association Class
D (1915)
Rio Grande Valley League
Class D (1931)
Rio Grande Valley League
Class D (1949), Class C (1950)
Rocky Mountain League Class
D (1912)
San Joaquin Valley League
Class D (1910-1911)
Sooner State League Class D (1947-1957)
Sophomore League Class D (1958-1961), Southwestern League (1956-1957), Longhorn League (1947-1955)
South Atlantic (Sally) League Class C (1904-1917)
South Atlantic (Sally) League Class C (1919-1920), Class B (1921-1930)
South Atlantic (Sally) League Class B (1936-1942)
South Atlantic (Sally) League Class A (1946-1962), Class AA (1963), Southern League (1964-present)
South Carolina League Class D (1907-1908)
South Central League Class D (1906)
South Central League Class D (1912)
South Dakota League Class D (1920,1923), Dakota League (1921-1922)
South Texas League Class C (1903-1906)
Southeastern League Class D (1910-1912)
Southeastern League Class B (1926-1930)
Southeastern League Class B (1932)
Southeastern League Class B (1937-1942)
Southeastern League Class B (1946-1950)
Southern Association Class B (1902-1904), Class A (1905-1935), Class A1 (1936-1945), Class AA (1946-1961)
Southern California League Class D (1913)
Southern California Trolley League Class D (1910)
Southern Illinois League Class D (1910)
Southern Michigan League Class D (1906-1910, 1912-1913), Class C (1911, 1914-1915)
Southwest International League Class C (1951-1952), Arizona-Texas League (1947-1950), Sunset League (1947-1950)
Southwest Iowa League Class D (1903)
Southwest Texas League Class D (1910-1911)
Southwest Washington League Class D (1903-1906)
Southwestern League Class D (1904)
Southwestern League Class D (1921), Class C (1922-1923), Class D (1924-1926)
Southwestern League Class B (1956-1957), Sophomore League (1958-1961), Longhorn League (1947-1955)
Sunset League Class C (1947-1950), Southwest International League (1951-1952)
Tar Heel League Class D (1939-1940)
Tar Heel League Class D (1953-1954), North Carolina State League (1945-1952), Western Carolina League (1948-1952)
Texas Association Class D (1923-1926)
Texas League Class D (1902-1903, 1906), Class C (1904-1905, 1907-1910), Class B (1911-1920), Class A (1921-1935), Class A1 (1936-1942)
Texas-Oklahoma League Class D (1911-1914)
Texas-Oklahoma League Class D (1921-1922)
Texas Valley League Class D (1927-1928)
Texas Valley League Class D (1938)
Tobacco State League Class D (1946-1950)
Tri-State League (PA-DE-NJ) Class B (1907-1914)
Tri-State League (NE-IA-SD) Class D (1924)
Tri-State League (AR-MS-TN) Class D (1925-1926)
Tri-State League (NC-SC-TN) Class B (1946-1955)
Twin Ports League Class E (1943)
Twin States League Class D (1911)
Union Association Class D (1911-1914)
Utah-Idaho League Class C (1926-1928)
Virginia League Class C (1906-1919),
Class B (1920-1928)
Virginia League Class D (1939-1940),
Class C (1941-1942)
Virginia League Class D (1948-1951)
Virginia Mountain League
Class D (1914)
Virginia-North Carolina League
Class D (1905)
Virginia Valley League Class
D (1910)
Washington State League
Class D (1910-1912)
West Dixie League Class C (1934-1935),
Dixie League (1933)
West Michigan League Class
D (1910), Michigan State League (1911-1914)
West Texas League
Class D (1920-1922), Panhandle-Pecos Valley League (1923)
West Texas League Class D (1928-1929)
West Texas-New Mexico League
Class D (1937-1942)
West Texas-New Mexico League
Class C (1946-1954), Class B (1955)
West Virginia League Class
D (1910)
Western Association Class
C (1905-1911), Missouri Valley League (1902-1904)
Western Association Class
D (1914-1917)
Western Association Class
D (1920-1921), Class C (1922-1932)
Western Association Class
C (1934-1942)
Western Association Class
C (1946-1954)
Western League Class A (1902-1937)
Western League Class D (1939-1941),
Nebraska State League (1928-1938)
Western League Class A (1947-1958)
Western Canada League Class
D (1907)
Western Canada League Class
D (1909-1914)
Western Canada League Class
C (1919), Class B (1920-1921)
Western Carolina League Class D (1948-1952), Tar Heel League (1953-1954)
Western Carolina League Class D (1960-1962), South Atlantic League (1980-present), Western Carolinas League (1963-1979)
Western Carolinas League Class A (1963-1979), South Atlantic League (1980-present), Western Carolina League (1960-1962)
Western International League Class B (1922), Pacific Coast International League (1918, 1920-1921), Northwest International League (1919)
Western International League Class B (1937-1942)
Western International League Class B (1946-1951), Class A (1952-1954), Northwest League (1955-present)
Western Pennsylvania League Class D (1907)
Western Tri-State League Class D (1912-1914)
Wisconsin-Illinois League Class D (1908-1909), Class C (1910-1914), Wisconsin State League (1905-1907)
Wisconsin State League Class D (1905-1907), Wisconsin-Illinois League (1908-1914)
Wisconsin State League Class D (1940-1942)
Wisconsin State League Class D (1946-1953)