- U.S. Geological Survey Geographic Names Information System: Coin (historical)
- Missouri Atlas & Gazetteer, DeLorme, 1998, First edition, p. 65, ISBN 0-89933-224-2
- "Post Offices". Jim Forte Postal History. Retrieved 24 November 2016.
- "Oregon County Place Names, 1928–1945". The State Historical Society of Missouri. Archived from the original on June 24, 2016. Retrieved November 24, 2016.
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