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: When we started collecting data about Erna, we were inconsistent about keeping track of where that data came from. As a result, this list of references and mentions is probably 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.