Robert Elliot Fergus

My mother's maiden name is Fergus and myg-g-grandfather is Robert Elliot Fergus born in Scotland in 1812. My g-g-grandmother, his wife was Martha A. Childress born in England in 1809. They met on the boat over and were married in Tennessee. Their children were born in LaVergne, TN. If any of this sounds familiar please let me know.
Nancy