Miscellaneous References and MentionsWhile our initial information about Helen came from various goverment sources (GNIS, FIPS), we also found mention of Helen 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 Helen. We hope that they will be useful to you. Note: Initially, we were careless about keeping track of where our Helen data came from. The following list of references and mentions is incomplete. Maryland: Official Transportation Map (2003)
Rand McNally Map of Maryland (1911)
Helen 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 Helen. See our Misc Page for Helen for more information. Footnotes ...
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