Stephanie Young at Principia College in Elsah, just outside Alton, has produced a major podcast series (All Town USA) about Alton, two of whose episodes deal directly with the Underground Railroad: Episode 1 and Episode 3. We recommend these highly: https://alltownusa.org
Great Rivers & Routes has published an interesting story about the role of Godfrey and Alton in the Underground Railroad:
We are especially excited to present the lecture with Dr. Eric Robinson, an expert in the Alton area Underground Railroad. WATCH:
source: https://www.uhsp.edu/news/archive/2020/robinson-discusses-underground-railroad-on-slpr-fox2-now.html Dr. Robinson is Assistant Professor of History at St Louis College of Pharmacy. His lecture was filmed (February 26, 2021) by the Lewis & Clark Community College in Alton in association with its Black Student Union in celebration of Black History Month. The lecture is used with permission.
The Alton Museum of History and Culture also has a small exhibit on the Underground Railroad.