Quote Originally Posted by sevenoaks View Post
And as far as the Irish/Scottish question goes, is easy to know who is what... simply ask them there name and if it starts with "Mc" then he is obviously a Scot.. If his name starts with an "O" then he must be Irish.
Not necessarily. Mc is simply the abbreviation for Mac which is the modern universal English spelling for "son of" in both Scots Gaelic and Irish Gaeilge.

Many surnames developed simultaneously in Ireland and Scotland so the Mc prefix is not much help when attempting to determine origin of name. Although it does narrow it down to a region that spoke some form of Gaelic/Gaeilge.