sentences:  Lockhart established the first national ice hockey tournaments for pre-high school boys in 1949.In 1964, he was at odds with the United States Hockey League and its commissioner Hal Trumble, regarding the perceived lack of support from AHAUS for the league, and the potential expansion of Lockhart's EHL into the Midwestern States.As the president of AHAUS, Lockhart also participated on the United States Olympic Committee, and was elected to the International Ice Hockey Federation committee in 1965.