Canadian Encyclopedia A very good article. There are links at the bottom of this link that may be useful.
Two books in our library, and
Wikipedia There are links at the bottom of this link that may be useful. For example, the official CPR website would be good if you are looking for information on what the railway is doing now.
Chinese railway workers Details on mis-treatment of Chinese workers.
Chinese railway workers # 2 Deeper detail on Chinese worker treatment including after the railway was built.