Towpaths to Tugboats: A History of American Canal Engineering
William H. Shank, Professional Engineer and Lehigh University Graduate, has been authoring books on transportation history in his native state of Pennsylvania for over 40 years. He was instrumental in founding the Pennsylvania Canal Society and the American Canal Society. A leading authority in his field, he has authored 8 books on canal and Pennsylvania transportation history and has also lectured extensively throughout the Northeast. In 1973 he founded his own publishing company, the American Canal & Transportation Center.