Alexander Gilchrist and Agnes Adair

I am seeking information of Alexander Gilchrist born on June 13, 1757 in Kiilsyth, Sterling, Scotland.Alexander came to the United States and settled in West Charlton, Saratoga County, New York. He died on April 2, 1842.Alexander was married to Agnes Adair, also of Scotland. I am seeking any clue about Miss Adair and her family.I believe she was born about 1763 but do know that she died on June 9, 1843. She is buried in West Charlton, New York.