Do an in page search for "Robinette" - you get to this posting ###
I actually looked into Biden's genealogy the other day. (He has at least one ancestor who comes from a few miles away from some of mine, in Cheshire, England. My people emigrated from England to Canada 250 years later.)
His grandfather George Biden was born in Maryland in 1867; his grandmother Emily (Biden) was born there in 1870.
His grandfather George Robinette was born in Maryland in 1844; his grandmother Mary was born there or in Ohio in 1862.
His early Robinett ancestor can be found in local records in Pennsylvania from the early 1700s where a descendant of that English ancestor of mine is also listed. He accompanied William Penn to the colonies: http://robinette.org/wp-content/uploads/Allen%20Robinet..http://robinette.org/wp-content/uploads/Allen%20Robinet...