Miscellaneous References and MentionsWhile our initial information about Royal Oak came from various goverment sources (GNIS, FIPS), we also found mention of Royal Oak 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 Royal Oak. We hope that they will be useful to you. Note: Initially, we were careless about keeping track of where our Royal Oak 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 Royal Oak: List of Post Offices in the United States (1870)
Table of U.S. Post Offices in the United States (Jan. 1851)
U.S. Post Offices (Oct. 1846)
Rand McNally Map of Maryland (1911)
Royal Oak 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 Royal Oak. See our Misc Page for Royal Oak for more information. Footnotes ...
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