Leann is an unincorporated community in Barry County, in the U.S. state of Missouri.
History
A variant name was Marmaduke. A post office called Marmaduke was established in 1886, the name was changed to Leann in 1890, and the post office closed in 1935. The present name is after Leann Thomas, the wife of an early postmaster.
References
Leann, Missouri Wikipedia(Text) CC BY-SA