6. Elizabeth ERWIN was born on 1 Oct 1798 in Augusta Co VA. She was living in 1850 in Barren Co KY. Elizabeth married Richmond ROBERTSON. Genforum has this: Richmond Robertson born in 1802 married Elizabeth Erwin 19 Oct 1827 Green Co KY. Their son James Marion Robertson was born in 1835 and married 13 Nov 1859 to Mary Ann Jewell. Richmond owned land in Barren Co KY and bought land from Reubin Robertson 7 Mar 1834. There was a Richmond Robertson in the 1840 census in Barren Co KY. One source said Nancy Erwin, d/o William and Susannah (Curry) married Richmond Robertson, probably a mistake. James Robertson was mentioned in the Little Barren River Church records.
https://alvispat.wordpress.com/erwin-william-sr-of-augusta-co-va-and-green-co-ky/