Wow, maybe an answer!

Google search: Nicholas Cowin led to the following:

ISLE OF MAN NATURAL HISTORY AND ANTIQUARIAN SOCIETY: FIELD SECTION
NOTES AND QUERIES Vol. I, No. 5
December 1969/January 1970
THE FAMILY TREE
By N.C. Kermode

.....

"During our perusal of the land transfers involving various Kermodes, I had found a marriage contract between William, eldest son of Daniell Kermod (he of the 1703 Composition Book) and Catherin Quay, daughter of William Quay, a brewer of Laxey, and dated 1701. This William died in 1722, leaving four children, one of whom was Mary Kermod who died as a child in the smallpox epidemic of 1725 and whom I have already mentioned when talking about Parish Registers. Her father left her 10/- in his will and, being a child, she had not been paid out this sum before her death, but her funeral account still exists, and...-Fig.3.

It was this sad little document, showing the expenditure of the 10/- on her burial, that gave me the clue which led to the successful conclusion of my search for the two wives' names. It was stated in it that the amount had been expended by her step-father, Nicholas Cowin. So her mother had married again and, out of curiosity, I sought for the record of her marriage to Nicholas Cowin in the Parish Register. To my great surprise, I found that after fifteen years of marriage to William Kermod and bearing him four children (including my 5X great-grandfather), she re-married in her maiden name of Catherin Quay, and I fell to wondering if this use of the maiden name in widowhood was a common custom. Investigation of a sample selection of women's wills made before 1700 showed this was common enough and, indeed, they didn't have to be widows to use their maiden name when making a will.

This now meant that the index of wills, so time-saving in locating a particular document, was of no use with regard to married women. And I was faced with the task of reading all the wills made by the women of Lonan parish from 1630 to 1690, the custom seeming to due out about 1700. And from all this reading I was able to find the names of the first and second Williams' wives." (There is more)

So, is Catherine Kermott a daughter of Catherine Quay and William Kermott?

Your thoughts?