My Great great grandfather Darby Craig married Mary Cassidy in 1870 in Bradford, his father was also listed as Darby Craig with occupation a Cooper but in 1870 was deceased. I have tried for years to find out anything about both of them, I have a feeling that my gt gt grandfather left England without mt gt.gt. grandmother as there is no death record for him. I think he was born in about 1846 ish but don't think it was Boyle. It is a right mystery.