Shannondale was platted in 1874 by Charles Shannon, and named for him. A post office called Shannondale was established in 1874, and remained in operation until 1915.
- U.S. Geological Survey Geographic Names Information System: Shannondale, Missouri
- "Chariton County Place Names, 1928–1945 (archived)". The State Historical Society of Missouri. Retrieved 17 September 2016.
- "Post Offices". Jim Forte Postal History. Retrieved 17 September 2016.