Years before Weakley County existed, there was a young man by the name of Robert Weakley. At the age of sixteen, Robert joined the Revolutionary Army and served until the close of the Revolutionary War.
In 1782 he traveled to North Carolina to study surveying with General Griffith Rutherford. In 1785, Weakley moved to the part of North Carolina that later became Tennessee and engaged in agricultural pursuits.
11 years later he was elected to the first Tennessee House of Representatives and served as Speaker of the Tennessee Senate from 1819 to 1821 and from 1823 to 1825.
Robert Weakley was appointed United States Commissioner in 1819 to assist in the treaty with the Chickasaw Indians. The Indians did concede, and on October 21, 1823 the rural community of Weakley County was established.