Some family picture albums have been lost so I was looking for old photos of Stephenville on the WWW. Google pointed to photos at this site www.c-and-e-museum.org/Pinetreeline/Photos/. The top-level domain redirects to the Military Communications And Electronics Museum which does not yet have the Stephenville 1959 photos. I got permission from the museum facebook page to use them.
Most of the photos are about the military site on "table-top" mountain usually called Pinetree. There were many Pinetree sites with big dish antennas for communications and RADAR. Powerful snowstorms sometimes ripped the roofs off buildings since there was nothing to break the wind.
There are photos of the British Queen Elizabeth visiting Stephenville in 1959.
See photos here: NORAD Pinetree Site
