Robert, would you have come across the parents of Patrick Adair c.1690 ?
"Dictionary of British and Irish Botanists ...." pub. 1994 by Ray Desmond.p.3. Patrick Adair (fl.1670s-1690) MD FRS 1688. Surgeon at Naval Hospital, Chatham. Sent British seaweeds from Gosport to S. Doody ; Indian drugs to Sir H. Sloane and Cape plants to L. Plukenet. ....................... re: Belfast Parish (St. Anne's) 1770 8 April. Adair Mccauley Cathe; Jesse Adair & Anne Stanton. Revd Wm. Tisdall [the e in Cathe was an underlined or two dot superscript]
There may have been 2 Adair marriages to 2 McAuley ladies - one was Robert Adair m. 3 April 1753 St. Brides Dublin, but the other one may have been c.1720s which I will look up again.