<https://www.americanroadmagazine.com/forum/topic/1933-building-the-illinois-national-road/#comment-17968>
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"Sorry to show up so late but you guys are so much better at the sleuthing stuff than I am that it's probably just as well. The pictures are really cool regardless of when they were taken. "
<https://www.americanroadmagazine.com/forum/topic/1933-building-the-illinois-national-road/?tab=comments#comment-17947>