Just updating this message again. Still seeking information on these ancestors. Variable spellings of surname include HERON, HERRON, AHERN and AHEARN(E).
My ggf Richard's father did come to the US with one of his married daughters. He died in Sunbury PA as the result of a RR accident. He was born in Ireland in 1809 and his name also was Richard Herron (AHerron on his DC). Still need to verify who was his wife or wives, children's births and anything about their origins in Belfast back to a Scottish heritage.
In the US, ggf siblings (sisters) married COSTELLO, CLAY, SPLAIN/KLINE, lived in PA and IN