There is no marriage for them in the Maughold register, and the bapts have only the father's name.

The bapts in Maughold were:
KNIPE James [father] James Knipe/ Parish Church 26 May 1702
KNIPE Hugh James Knipe/ Parish Church 16 Feb 1703/04
KNIPE Margaret James Knipe/ Parish Church 23 Feb 1705/06
KNIPE Dinah James Knipe/ Parish Church 5 May 1708
KNIPE John James Knipe/ Parish Church 4 Jan 1710/11
KNIPE Cathe James Knipe/ Parish Church 9 Aug 1714
KNIPE Alexander James Knipe/ Parish Church 30 Oct 1717
KNIPE Elizabeth James Knipe/ Parish Church 28 Jan 1719/20

Sue