42nd cousins

 I shall explain how to work out relationships with cousins.

The starting point is the common ancestor.

If you both share a grandparent, you will be the same generation, you are cousins or first cousins.

Robert Murdoch and  Hugh Fleming are first cousins.

If you both share a great grandparent ( and you will be the same generation)  you are second cousins.

David Murdoch and Isabella Fleming are second cousins and her daughter Mary and David are second cousins once removed, meaning one generation removed.


See this chart for more distant cousins.