Thanks for your quick reply. The website I referred to is www.mannincloud.info. Click on Arch.Wills 1600-99, then open Index 1600-30, it is titled "Isle of Man: Numerical & Alphabetical Index to the Episcopal Wills 1600 through and Miscellaneous Manx Wills 1602-1633". It looks like Joyce Oates has included the Episcopal Wills, but not the Miscellaneous Manx Wills.
Would the Manx Library have these Miscellaneous Manx Wills? If so, is there a reference number or equivalent to these Wills.
Any information would be greatly appreciated.