it may be useful to look at www.manxnotebook.com/famhist/genealgy/church.htm re lack of parish regs for this date - wills may provide some guidance as these date from late 16th century though early wills often give little info - land records may help but generally those who emigrated were non-inheriting younger sons who wouldn't appear in records - how have you got back to 1613 ? and what Manx roots