Gary, the Creech/Creetch family was a particular interest of Brian Lawson's, who compiled the IOM wills index (and many others). He transcribed many of their wills, which may interest you if you haven't looked at his files. See: www.iomfhs.im/lawsons/wills/cr2-will.html

Do you know which IOM parish your Creech ancestors came from?

Sue