The main hangar at the airport, as seen in August of 2016.   The airfield was built during 1940-1941 as the primary relief, or "R.1", field for RCAF Station Dunnville, a unit of the British Commonwealth Air Training Plan (in Canada).   It's first name was "RCAF Welland".
<a href="//commons.wikimedia.org/wiki/User:SteveTheAirman" title="User:SteveTheAirman">J. S. (Steve) Bond</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>