I have since found no proof of the parents of Robin Adair.
In book on Suffolk (may be by Suckling) Vol.I 1846 page 201 there appears the pedigree of Adair extracted from the Records of Ulster, King of Arms of all Ireland on the 1st July 1838 and transferred to the Heralds' College, London.
The children of Sir Robert Adair and Jane Edmonstone were shown as : 1.William Adair (d. Nov. 30 1661) m. Anna Helena Scott 2.Archibald Adair of Litter, in the Queen's Co., Ireland, 2nd son, d. intestate and Admin. granted to his son William, 9 September 1692. 3.Alexander Adair, 3rd son. 4.Robert Adair 4th son 5.Isabella wife of Robert Macdowall of Logan, Wigton, Scotland. 6.Anne, wife of Rev. Kennedy 7.Joan, wife of Rev. Patrick Adair.
The son of William Adair and Anna Helena Scott was Sir Robert Adair who d. at lodgings in College Green, nr Dublin Feb. 1745 aged 86. His 4th wife is shown as Arabella, dau. of Richetts, m. 1720, d. Oct 1742.Arabella and Sir Robert Adair are shown to have had a son, Alexander Adair, bap. 4 Sep. 1720.
Would anyone have more information on this Alexander ?