These new details reopen the question of whether I would have enough heritage for an Irish passport. If great grandfather James had been born six years sooner in Ireland it would certainly be the case. Anyway this is the thing with family research: you never know when you'll find something new. I first started researching fifteen years ago and it's taken till now to narrow the date of James and Mary's emigration to England to just six years. Next: Can i find their date of passage?