It is probable that Davis Short of Copiah and Jefferson Co MS was also a son of Jonas and Mary Short. He was born in GA about 1792. He served in the 13th LA militia along with Simeon Short; he married Unity Barksdale in Marion Co MS close to Washington Co LA and he lived in Copiah Co MS in the 1820s, as did Jonas. He appeared in the 1850 census of Jefferson Co MS along with his (apparent) mother Mary Ann, the same name as Jonas' wife. So there is circumstantial evidence but no actual document stating a relationship with Jonas Short.