Miscellaneous References and MentionsWhile our initial information about Summer Hill came from various goverment sources (GNIS, FIPS), we also found mention of Summer Hill 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 Summer Hill. We hope that they will be useful to you. Note: Initially, we were careless about keeping track of where our Summer Hill 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 Summer Hill: List of Post Offices in the United States (1870)
Map from 1870 (unknown title/publisher) Rand McNally Map of Illinois (1897)
Summer Hill 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 Summer Hill. See our Misc Page for Summer Hill for more information. Footnotes ...
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