Would your Rev. Patrick Adair of Altoun, parish of Kirkmadin in the Ryne of Galloway, vicinity of Wigtoun, Scotland, be the brother of:
William Adair b. 1565 at Kinhilt, Scotland, John Adair b.1569 of Maryport near Kinhilt, Scotland, Alexander Adair b.1571 of Corgie, Scotland, Rev. Archibald Adair who d.1647 in Bristol, England, and Gilbert Adair of Cardryn, Scotland ? My ancestor was the above Rev. Archibald Adair. Scot's Peerage III page 278 states William Adair (who may have been bro. of your Rev. PatrickAdair) m. Janet Dunbar in Altoun. Both Patrick and William are mentioned in "The Register of the Great Seal of Scotland" no. 1755 20 January 1618 - Patricio Adair fratri germano Willelmi Adair de Kinhilt re terras de Altoune.
At a guess, whom, in your opinion, would be the "current" head of your "Adair" side of the family ?