1871 Appletons' railway map of the United States and Canada by G. F. Thomas and Rae. Smith, from the Digital Commonwealth - commonwealth cj82kp63x. (<a rel="nofollow" class="external free" href="https://www.digitalcommonwealth.org/search/commonwealth:cj82kp63x">https://www.digitalcommonwealth.org/search/commonwealth:cj82kp63x</a>)
G. F. Thomas and Rae. Smith
Digital Commonwealth