I recently retired from teaching history, ethics, and writing at the engineering school of the University of Virginia.
I am still researching and publishing on many topics in American technological history, working particularly on an energy history of the US and on a history of the Eads bridge in St. Louis. Railroads play essential roles in both topics.
Many years ago, I wrote a history of the Baldwin Locomotive Works (Johns Hopkins, 1995). Baldwin is still an interest