Moving further south on S Front St, we find the sites of some formerly wooden buildings that did not survive to the present. Tinkcom mentions these in her essay as well.
Further Reading:
Tinkcom, Margaret B. “Southwark, A River Community: Its Shape and Substance.” Proceedings of the American Philosophical Society 114, no. 4 (August 1970): 327-342. https://www-jstor-org.proxy.library.upenn.edu/stable/985956.
Kirkbride, Mrs. Earle R. “South Front Street Historic District.” February 28, 1972. https://catalog.archives.gov/id/71996918.
Kirkbride, Mrs. Earle R., and Patricia Siemiontkowski. “Southwark Historic District National Register Form.” March 14, 1972. https://gis.penndot.gov/CRGISAttachments/SiteResource/H001472_01H.pdf.
“Southwark Historic District National Register Inventory.” https://gis.penndot.gov/CRGISAttachments/SiteResource/H001472_1453_I.pdf.
Image Source:
"722-728 S Front St," 1931, from Survey of Philadelphia by Widoop and Carollo, https://www.phillyhistory.org/PhotoArchive/MediaStream.ashx?mediaId=139377.