Shacklett, TennesseeShacklett is an unincorporated community in Cheatham County, in the U.S. state of Tennessee.HistoryA post office called Shacklett was established in 1897, and remained in operation until it was discontinued in 1904. The community was named after Dr. Henry Rector Shacklett, a local physician who lived in the Dog Creek community in the late 1800s.