Oyer, Missouri
Oyer is an unincorporated community in St. Clair County, in the U.S. state of Missouri.
A post office called Oyer was established in 1882, and remained in operation until 1935. William Oyer, an early postmaster and local merchant, gave the community his last name.
Coordinates: 37°57′38″N 93°52′16″W / 37.96056°N 93.87111°W
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