If Dorothea Royle and John Heald were married in England Dec. 3, 1636, they must have emigrated AFTER that. There are MANY inaccuracies in many genealogies regarding these folks, so it would probably be advisable to use as many original document sources as possible.
Does anyone have a parish register copy for either of their baptisms? I personally think this John Heald was probably born near Alderley, and may have been of the distaff branch of the Heald/Hield/Hale family located in this area (the main branch cited by Ormerod as being originally in Kent but acknowledging this branch as descendants of the main).