There was a James Adair m. Mary Piper in Ireland had son, John Adair b. 1797 d.1866. John Adair m. Jane Campbell b.1797 and had (amongst others) sons, Robert Adair b. 1811 m. Rachel William Campbell Adair b. 1818 Lisburn, Ireland, d. 1905 Licking County, Ohio. m. Emeline Cavey b. 1823.
This is my family. I have all the info on this family. There is not an Alexander in my family. I would love to hear from you if this is part of your family.