One thing about what Gilmore is saying on the clans and genetics... The clan chiefship or the normal passing on of the title of chief is absolutely one-hundred percent based on genetics; in other words, an offspring or genetic relative off to the side. Without a chief, there is no clan.

I interrogated MacMillan of Rathdown on this point a while back, and he assured me this was the case. All other clan related things are matters of loilty to the chief and are not required to be geneticly based.

It would be interesting to see how the genetic relations pan out in the chiefs if it were possible to follow back the path of the DNA, since there was no way of being sure until recent times.

On the other hand, it might open a few cans of worms; I know it would in my family.