<p>Wop May and Vic Horner getting into Avro 594 Avian to take diptheria antitoxin to Fort Vermilion.  January 2, 1928.  
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Provincial Archives of Alberta, A11798.
<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/14091562125/">Mercy Flight: Wop May and Vic Horner off to Fort Vermilion with diptheria antitoxin.</a>