Chicago Opera Association was created in 1915.
Chicago Civic Opera ended in 1931.
Chicago Opera Company ended in 1946.
Chicago Grand Opera Company ended in 1914.
Chicago City Opera Company ended in 1939.
Nashville Opera Association was created in 1981.
Chicago Opera House was created in 1885.
Lyric Opera of Chicago was created in 1929.
Chicago Civic Opera was created in 1922.
Chicago Opera Company was created in 1940.
Chicago Opera Theater was created in 1974.
Florida Grand Opera Musicians Association was created in 2000.