Wop May and Vic Horner getting ready for take off in Avro 594 Avian to take diptheria antitoxin to Fort Vermilion.   January 2, 1928.  Provincial Archives of Alberta, A11800.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/95711690@N03">Provincial Archives of Alberta</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/alberta_archives/14088359161/">Mercy Flight: Wop May and Vic Horner off to Fort Vermilion with diptheria antitoxin.</a>