Canadian Pacific afloat 1883-1968 : a short history and fleet list, by George Musk will be of possible interest if your family history includes someone who voyaged on one of the company ships; I was on two of them. Find out about a ship’s history. Beware as names were recycled.
It contains a table of the company ships that saw WW2 service
I was surprised to see the large role played by the Empress of Scotland.
The book is online as part of the Chung Collection at The University of British Columbia.