I am trying to find out more information about the ancestry of Richard S. McJunkins, probably born about 1830 probably in Union County, SC. His mother was named Rachel, and they probably moved from SC to Tennessee and then to Arkansas. Richard was married to Martha A. Erwin (born in TN abt 1839). I have lots of information about Richard and his decendants in Arkansas, but am having trouble connecting him to a McJunkins/McJunkin line. Any help would be appreciated.