Philadelphia Civic Grand Opera Company ended in 1955.
Philadelphia Opera Company ended in 1910.
Philadelphia Civic Opera Company ended in 1930.
Philadelphia Lyric Opera Company ended in 1974.
Chicago Grand Opera Company ended in 1914.
Philadelphia La Scala Opera Company ended in 1954.
American Opera Company ended in 1930.
Chicago Opera Company ended in 1946.
Boston Opera Company ended in 1915.
Berkshire Opera Company ended in 2009.
Beecham Opera Company ended in 1920.
Opera Company of Boston ended in 1990.