Identify 1181 CHS Cadet Corps officers of 1957

THEY ARE FROM LEFT STAN BARTY, IAN MACDONALD, NEIL RITCHIE, DAVID McMILLAN, JIM HONG. IN BACKGROUND IS A.E. "GUSSIE' EVANS Who are these five  fine looking cadet officers headed to the parade ground behind the old CHS for the annual inspection in 1957?

BONUS QUESTION: Who is the gentleman in the fedora and suit standing behind them?

CLICK ON IMAGE TO ENLARGE!!!

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