Branchline Index [1973-03-01, 4, Article, Historical, , Canadian Pacific, Brockville, ON, History of the Brockville Railway Tunnel., <table class="r-html-container"><tbody><tr><td><a href="https://www.bytownrailwaysociety.ca/phocadownload/branchline/1973/1973-03.pdf#page=4" target="_blank">Open PDF</a></td></tr></tbody></table>]