I have just added a brand new clan, the Nottinghamshire clan. It is based on a tree provided by Adrian Warburton and includes 248 new people, 180 of them Warburtons.
It originates in 1665, and I had hopes of linking it to the West Virginia clan which originates in a similar area. Alas no link is obvious, but the clan does have a number of possible undeveloped lines, including the descendants of two illegitimate sons of a Hannah Warburton born in 1758. Also as yet it lacks the normal level of detail I like to provide from censuses etc. Hopefully it can be expanded in the future.