I have a cousin who used geni.com to assemble our family tree back to the "old country," as we say here. I had long been told I was descended from a namesake signatory of the Declaration of Independence, yet was a bit surprised to find that I really am his fifth great-grandson. His father had emigrated to the colonies from County Tyrone in Ireland, whose father had emigrated to Ireland from Scotland. Geni has established my lineage to my 11th great-grandfather, who was born in Northumbria in the mid-1500s. This means, among other things, that on any give day I can loosely claim English, Scottish, or Irish heritage.
www.geni.com