The longtime head of John Bapst Memorial High School, Mel MacKay, plans to retire at the end of the upcoming school year. MacKay has headed the 540-student independent high school in Bangor since 2007. Under his leadership, John Bapst has developed a reputation for its strong academics and diverse international student population. MacKay will be 66 when he retires next year, ending a 37-year-long career in education. “It feels like a good time personally, and a good time for the school in the sense that we hope we’ll be past this coronavirus emergency,” MacKay said.