traced back Penelope Cock (Issac Bolt's wife) family tree.. father is Reuben Cock, married to Sarah Kemp, his father was James Cock married to Elizabeth Richardson..now get this..His sister is Rhoda COX!!!!! His father was Andrew Cox married to Penelope Ward. His father was John Cox married to Elizabeth Goad , daughter of John Goad, son of Abraham Goad and Katherine Williams , who was the daughter of John Williams.......... and that is as far as I have gotten..So, what we have here is grandpa James (COX) just could not spell his own last name , and the family became COCK!!!!!!!!!!!!!!!!!!!!!!!!