Have you searched the photo in Google photo search??? Sorry if it seems obvious but not every one knows u can.

I did and seems to possibly be future prime minister Pierre Trudeau...

According to biographers Max Nemni and Monique Nemni, authors of Young Trudeau: 1919-1944: Son of Quebec, Father of Canada, the motorcycle/helmet story “has as many variants as there are storytellers, each embroidering freely on the known facts.” Credible sources do seem to agree, however, that young Pierre and his friend Roger Rolland (1921-2011) played a prank in 1942 that involved dressing up in European military uniforms and riding around on their motorbikes.

http://www.thecanadaguide.com/culture/canadian-urban-legends/

However I assume you knew this?