The name McGregor/MacGregor was outlawed/proscribed. However, I know that - I was just making the point that Alexander's father also used the name Campbell, hoping that might shed some light on which Gregor I'm looking for.
Gregor McGregor/Campbell is Alexander's father. He married Alexander's mother, Isobel, in 1751. I'm now trying to find Gregor's father and mother.