Garrettsburg is an extinct hamlet in Buchanan County, in the U.S. state of Missouri. [1]
A post office called Garrettsburg was established in 1872, and remained in operation until 1902. [2] The community has the name of Zach Garrett, a pioneer citizen. [3]
It was located in northwest Tremont Township along the Platte River midway between Agency and Easton. [4]
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