Yes, a very sad story and obviously not very well known, even in Calgary.
F for Freddie was a Pathfinder Oboe Mosquito with 213 operations - reputedly the highest number for an allied aircraft - the Smithsonian's B-26 'Flak Bait' comes a close second with 202.
The father of a friend of mine in Calgary saw the fly-bys in downtown Calgary and confirms that Freddie was below the top of the Hudson's Bay Store, which is six stories.
http://www.hbc.com/hbcheritage/histo...es/calgary.asp
The link you've put up has a very colourful, speculative connection with a Nationalist Chinese femme fatale.
A more prosaic version is told here, but with more (but unfortunately low resolution) pictures:
http://www.asmac.ab.ca/html/F%20for%20Freddie.pdf
The last picture in the pdf is an aerial view, claiming to show the crash site. However, I'm pretty sure that the picture is not McCall Field. What do you think, bri?
twochai has the floor.