I have been researching the Looney family of Lonan Parish and also the Lewney's of Lonan, but as Eric said,"it is a tough grind to figure out".
The Looney's of Ballamoar, Lonan - Daniel Looney 1657 - 1720 married, Ellinor?? (1) Grace Casement (2) Issue; (1) Daniel Looney 1681 - 1729 married, Mary Callow 1692 - 1724 Issue; Daniel Looney married Jane Kissack, Santon (1) Elizabeth Callow (2) Issue; (1) Thomas Looney 1739 - 1819 married, Ann Clague, Marown (twin Daniel Looney 1739-1739) Issue; Thomas Looney 1773 - 1839 married, Santon, Ann Brew, daughter of Robert Brew & Isabel Moore.
The daughter of Thomas Looney & Ann Brew, Isabella Ann Looney married, Lonan, William Looney, Ramsey, son of William Looney & Elizabeth Callow. I am going to assume that Isabella Ann & William are cousins, but how it comes about, I am still working on. I also stand corrected on any information that maybe incorrect.