White Circle Missing Information

Wm Collins Sons & Co. Canada Ltd published 429 titles in their White Circle paperback reprint line from 1942 until 1952. All but nine were reprints but Collins never stated the original publication information. I've been able to identify this information for all but nine of the 420 titles.

The reason I can't find the original publication is Collins changed the title. And the authors wrote dozens of books. I'm showcasing these nine books here with the hope that someone can recognize the original title.

 

White Circle 321 - 1947

 

White Circle 321 back

 

White Circle CD366 - 1948

 

White Circle CD366 back

 

White Circle CD387 - 1949

 

White Circle CD387 back

White Circle CD389 - 1949

 

White Circle CD389 back

 

White Circle CD393 - 1949

 

White Circle CD393 back

 

White Circle CD395 - 1949

 

White Circle CD395 back

 

White Circle CD416 - 1949

 

White Circle CD 416 back

 

White Circle CD420 - 1949

 

White Circle CD420 back

 

White Circle CD428 - 1949

 

White Circle CD428 back