Miami Valley Conference was created in 1979.
Eastern Valley Conference was created in 2007.
Missouri Valley Conference was created in 1907.
Tri-Valley Conference was created in 1969.
Ohio Valley Conference was created in 1948.
Miami Valley Hospital was created in 1890.
Miami Valley Sabres was created in 1986.
Miami Valley Open was created in 1993.
Miami Valley Railway was created in 1876.
Missouri Valley Football Conference was created in 1985.
Mississippi Valley Conference - Wisconsin - was created in 1989.
Great Lakes Valley Conference was created in 1978.
Miami Valley Narrow Gauge Railway was created in 1874.