Keystone Unknown Podcast

This week we are switching it up and focusing on 2 Pennsylvanians that you might not have heard of. The first is a chemist from Western Pennsylvania and the second was a Eastern Pennsylvania business owner from the 1800s.  Don't forget to leave us a review on Apple Podcasts or Stitcher.  Feedback is always welcome!    Sources: If you want to learn more about Carborundum click here.  For more information about the Steel Museum and Heritage site click here.