Miscellaneous References and Mentions

While our initial information about Erna came from various goverment sources (GNIS), we also found mention of Erna in various books and other sources.

We've created the following list to keep track of the sources that proved useful in adding to our knowledge about Erna. We hope that they will be useful to you.

Note: Initially, we were careless about keeping track of where our Erna data came from. The following list of references and mentions is incomplete.

Erna 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 Erna. See our Misc Page for Erna for more information.