1836 map and profile of the Boston and Lowell Railroad, completed the previous year.
James Fowle Baldwin
<a rel="nofollow" class="external text" href="http://maps.bpl.org/id/10993">A plan &amp; profile of the Boston &amp; Lowell Railroad</a> via <a rel="nofollow" class="external text" href="http://maps.bpl.org/">Norman B. Leventhal Map Center</a>