California Youth Symphony was created in 1952.
Metropolitan Youth Symphony was created in 1974.
Albuquerque Youth Symphony was created in 1955.
Sacramento Youth Symphony was created in 1956.
Norwalk Youth Symphony was created in 1956.
Anchorage Youth Symphony was created in 1965.
New Jersey Youth Symphony was created in 1979.
Atlanta Symphony Youth Orchestra was created in 1974.
Boston Youth Symphony Orchestras was created in 1958.
Florida Symphony Youth Orchestra was created in 1957.
Toronto Symphony Youth Orchestra was created in 1974.
California Symphony was created in 1986.
San Francisco Symphony Youth Orchestra was created in 1981.