Well I'ma McGeoghan but a maternal Twohig living in Cambodia. My mother's a Twohig (Ellen Twohig) from Clonakilty, Co. Cork Ireland. Twohig is almost certainly a name from this county although not too plentiful. Specifically, my mother is from the village of Donour ( Ardfield -near the Galley Head) and there are a number of Twohigs in this area. She is the daughter of Steven Twohig (died 1954) (and Mary Calnan, died 1967) and has no known relatives in the USA. She does recall though that many of her father's relatives (Uncles, aunts and beyond) settled in the eastern USA during and after the famine.