Miscellaneous References and MentionsWhile our initial information about Ioka came from various goverment sources (GNIS), we also found mention of Ioka 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 Ioka. We hope that they will be useful to you. Note: When we started collecting data about Ioka, we were inconsistent about keeping track of where that data came from. As a result, this list of references and mentions is probably incomplete. Business Atlas and Shippers' Guide (1895)
A note taken from the Shipper's Guide for Ioka: Iowa State Gazetteers
List of Post Offices in the United States (1870)
Map from 1905 (unknown title/publisher) Rand McNally Map of Iowa (1911)
Ioka is contained in a comprehensive list of Post Offices that was created by Cameron Blevins and Richard Helbock.<1> The GNIS database contains an entry for Ioka. See our Misc Page for Ioka for more information. Footnotes ...
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