Black Oak is an unincorporated community in southern Caldwell County, in the U.S. state of Missouri.
History
Black Oak was platted in the early 1870s, and named for a grove of black oak trees near the original town site. A post office called Black Oak was established in 1868, and remained in operation until 1904. The town had a peak population of around 150 inhabitants. When Braymer was established because of the railroad, the town dissipated. Only a church and cemetery remain today.
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