Looks like something I would take an interest in John. I may just have to check this out.
In Minnesota, especially Northern Mn we spelled CN, DWP.
Track fiddler
My friend Eric Gagnon has written two news books about modelling the Canadian prairies, with an emphasis on trains and grains. I interviewed him for my blog; find it here: http://cprailmmsub.blogspot.com/2018/06/trains-grains-new-books-about-western.html
John Longhurst, Winnipeg