My grandfather flew with this squadron in WW2, unfortunately, he never made it home so I never knew him. My dad doesn't really remember him either. I do know that in more recent years, the name 575 Terrier Squadron was attached to an Air Cadets flight training squadron at CFB Southport. the only information I've uncovered so far seems to indicate that they trained in P40s and the like, and flew operational sorties from RAF bases in Hurricanes and Typhoons that had been manufactured under license in Canada by Canada Car.
If anyone has any information whatsoever regarding this outfit and its role in WW2, I'd be eternally grateful. all!