I said Guilford and should have said Granville.Maybe you will find something that you didn't know was there.A message sent from beyond to help us. Ha! Ha!
As for the alias.I just finished doing a line that was full of alais.The reason being was that the sons were both bastards.Since I am not familiar with these familes, you will have to figure out which name is that of Malcom's father.In the other case the boys usually went by their father's name and the alias was their mother's name.But, sometimes it was different.Since I knew the mother's maiden name it wasn't a problem.
All of this info at one time is a little mind boggling.