How many member teams are in the hockey league which Murray Williamson played, coached, and managed within?
United States Hockey League The United States Hockey League (USHL) is the top junior ice hockey league in the United States. The USHL has 17 member teams located in the Midwestern United States, consisting of players who are 20 years of age and younger. The USHL is strictly amateur, allowing former players to compete in NCAA college hockey.
Australian Hockey League The Australian Hockey League (AHL) is Australia’s premier national domestic field hockey competition. Despite its non-professional nature, AHL is considered one of the strongest and most competitive national field hockey leagues in the world. The AHL consists of both men's and women's competition. It includes many players from the Kookaburras and the Hockeyroos, and participating in the AHL is a selection requirement for all Australian national squad members.