I believe this Elizabeth Adair was Elizabeth Posey from VA. She first married a Huffman, with whom she had two children, Adam and Sally Huffman. She later married Robert Sidney Adair who was killed in the latter stages of the revolution. They had two (perhaps three) children: Nancy and Robert Sidney Adair. Nancy married Samuel Maloney. These Adair's and Maloneys moved to Gwinnett County, GA in 1818. Perhaps Sally married William Elrod. I haven't researched the Huffman children.