Well now that I have had time to think about it my idea about DNA is probabaly not so good. It would depend on how many people would need to be tested to prove anything. More than the two or three who might be prepared to do I would say. Maybe 20 people (males) or more. I wonder how you know if someone is a freemason? I thought the whole point of it was that you didn't know. If they tell you they are there is probabaly a good chance they are not.