J.S. Roane was most likely John Seldon Roane. He should be easy to find on the internet because he was, I believe, an early governor of Arkansas (elected on August, 1849 and served one term.) He also fought in the Battle of Buena Vista in Mexican-American war, February 22-23, 1847.
His parents were:
Hugh Roane (b. 1765 to Margaret Walker Roane and Andrew Roane, in Derry township, Lancaster, Pennsylvania -- now Dauphin County, Pa., d. 1825 and buried in the Calhoun Cemetary, 6. mi. north of Lebanon, TN...His tombstone reads "Hugh Roan/1765 - 1825"), and,
Hannah Calhoun Roane (b. August 24, 1775 in NC, d. March 18, 1851.)