Was Margaret Hamilton George Hamilton's mother?

They don't seem to be. George Hege Hamilton IV, a country singer with the Opry, is two years older and was born in North Carolina. George Stevens Hamilton IV, the actor, was born in Tennessee in 1939.

yes!

scientifical reasons say it might run in the family

No.

Only you could know that. Try asking him but he would Deni it. What do you think dose he seem like he would do something like that. If not then try giving him another chance.