In the summers of '66 to '68 my vacation job was as an Assistant at the Air Canada Commissary Department, housed in a tatty building next to the Eagle hangars. Some of the catering equipment was stored in old bar boxes rescued from TCA Connies. In '66 the communal AC singalong was 'We all live in an Air Canada DC8' sung to the tune of 'Yellow Submarine'.
Occasionally I would take my Ilford to work to take piccies such as this:
Here's a '68 compilation of pics I snapped sitting by R23L during a lunch break (apologies to Ppruners who've seen it before). Damn! I've given the answers away! The Pan Am 707 is noticeably higher than the others - given that 23L was shorter than the other runways I wonder what the crew were thinking as the real estate flashed by below them.