'John Ramsey and Margaret were in North Carolina by 10 Oct. 1774 (probably long before), when John Ramsey and Margaret and Andrew Crockett ...'
According to online trees, John Ramsey was Margaret's second husband. There is likely good evidence for this elsewhere. This article just provides evidence that Margaret, widow of Robert Crockett, married John Ramsey, and mentions that Robert Davis and Margaret Ramsey were executors of Robert Crockett.