I have a Patrick Quigg born 23 Feb 1833 in Coleraine, County Derry. He is my GG Grandfather. Son of James Quigg and Mary Alexander. Patrick (not sure of others)eventually settled in Canada sometime before 1854, as that is the year he married Mary Ann Stuart in Toronto, York, Canada. I have managed to 'leap the puddle', but cannot find details beyond that. Try www.familysearch.org as they seem to have the best info I've found yet.A longshot, but I responded to your message as I have not found any unrelated Quigg's in Derry yet.