Mr. Johnston was a member of The Royal Canadian Navy. He has always put the Veterans of Canada foremost in his 26 years as a member of The Royal Canadian Legion. In addition to his involvement with the Legion, Mr. Johnston has shown a commitment to other local organizations and charities. He became the Chair of The Royal Canadian Legion District B Hospital Trust Fund for Veterans and Sunnybrook Hospital in Toronto and Parkwood Hospital in London, Ontario in 2001. He has raised funds that have contributed to the purchase of a bus for Sunnybrook and the complete renovation of a wing at the Tony Stacey Centre. At Branch 350 Port Dalhousie, Mr. Johnston has served as a Poppy Chairman, Editor of the newsletter and sits on the Executive. At the District Level of Ontario Command in 2007, Mr. Johnston was elected and presently serves as Chairman of District B. He is serving as the Ontario Provincial Command Financial Advisory Chairman.