Miscellaneous References and MentionsWhile our initial information about Wapwallopen came from various goverment sources (GNIS, FIPS), we also found mention of Wapwallopen in various books, maps and other sources. We've created the following list to keep track of the sources that proved useful in adding to our knowledge about Wapwallopen. We hope that they will be useful to you. Note: Initially, we were careless about keeping track of where our Wapwallopen data came from. The following list of references and mentions is incomplete. Business Atlas and Shippers' Guide (1895)
 A note taken from the Shipper's Guide for Wapwallopen: List of Post Offices in the United States (1870)
 North American Railroad Atlas - Northeast
 Rand McNally Map of Pennsylvania (1911)
 Wapwallopen is contained in a comprehensive list of Post Offices that was created by Cameron Blevins and Richard Helbock.<1> Both the GNIS and FIPS databases contain entries for Wapwallopen. See our Misc Page for Wapwallopen for more information. Footnotes ...
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