On the subject of the Qualtrough line I have a Margery Qualtrough (ch. 16.7.1712 at Malew) who married Robert Holmes (ch. 17.2.1707).
I do not have a date of the marriage.
Margery's father was John Qualtrough (ch. 27.11.1686).
Is there any link from these to the Qualtroughs of the north??