Leaving Ottawa July 1948. A. A. Schwalm photo, Gene Connelly collection
The Canadian National Railways Historical Association’s magazine CN Lines Volume 17 Number 4 has an excellent article summarizing New England freight train operations over the decades. Volume 13 Number 3 also has a good article about operations in Hamilton in the 1970’s.
Ian Wilson’s Steam series provides comprehensive information about freight operations in the 1950’s in the areas covered by his books.