1917 (circa) Map of White Pass &amp; Yukon Route and connections, by Poole Brothers, from the Digital Commonwealth - commonwealth 4m90ff121r. (<a rel="nofollow" class="external free" href="https://www.digitalcommonwealth.org/search/commonwealth:4m90ff121">https://www.digitalcommonwealth.org/search/commonwealth:4m90ff121</a>)
Poole Brothers
Digital Commonwealth