Waterford and Kilkenny - are these our people?

There are a scattering of references to Hingerty families in Kilkenny and Waterford. Do these Hingerty families belong to us? How do they fit into the bigger Hingerty/Harrington picture? The first reference is a very early one. In 1568 Dermot Hyngerty, a merchant of Waterford was granted English Liberty by Elizabeth I of England. This was documented in Fiant 1224 of 23 October 1568. By being granted English Liberty, Dermot was renouncing his Irish rights and agreed to enjoy all the rights, privileges and responsibilities of being a loyal subject of the English Crown. He, and his children (issue) would not be held back by the laws that restricted Irish access to employment, land etc. We know nothing more about Dermot or his family. Note that in this period of Irish history, the only references to the surname Harrington are Sir Henry Harrington (an Englishman serving in Ireland) and Donogh oge O'Harightane of Kerry who was granted a pardon in December 1584 (Fiant 4555). All ...