A long time ago, I was in contact with someone who said George Dreffield Hamilton's parents were John Hamilton b. 1796 of Leacock Township, Lancaster County, Pennsylvania and Martha Duffield. I will have to search my paper files. I know she had more info, however, I don't believe she is living any longer. It seems possible that one of the names Duffield and Dreffield are transcription errors. I will see what I can find.