The blurbs on the backs of the Vehicule Press editions have been taken from the White Circle editions. The artist on Murder Over Dorval is unknown. The cover on The Crime on Cote des Neiges is one of 32 photo covers from Wm. Collins for the White Circle imprint.
Dorval is now Montreal-Pierre Elliott Trudeau International Airport.
White Circle C.D. 516 - 1951
White Circle C.D. 539X - 1952