Books by Richard O'Connor:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
O'Connor, Richard (Richard John): Covered bridges and the birth of American engineering (Washington, D.C. : National Park Service, Historic American Engineering Record, 2015., 2015), also by David A. Simmons, Michael R. Harrison, Rachel Herring Sangree, M. K. Reckard, Dario A. Gasparini, Sheila Rimal Duwadi, Joseph D. Conwill, Lola Bennett, James Barker, Christopher H. Marston, Justine Christianson, Turner-Fairbank Highway Research Center, and Historic American Engineering Record (page images at HathiTrust)
Find more by Richard O'Connor at your library, or elsewhere.