Maybe they didn't have any dealings with Mr. Epstein.
Early Origins of the Flynn family
The surname Flynn was first found in Tuitre (now Antrim,) where they were Lords of Tuitre. (O'Hart) However, the Flynn surname arose independently in several parts of Ireland. Perhaps the oldest line were a Sept of Ó Floin in Armagh, Ulster, where they were a senior branch of Clanna Rury of Ulidia, claiming descent from King Colla Uais, the famed 4th century Irish King, who in turn was descended from the Heremon royal line.
The family claim descent from "Flann ("flann:" Irish blood), meaning "the man with the red complexion:" his son; a quo O'Flainn, and the name of the mountain Sliabh-ui-Fhloinn. Feah O'Flynn; his son; the first of the family that assumed the sirname." (O'Hart)