Hello Maureen,
Was your Isabella Corteen born 6 May 1870 (bapt 15 May 1870, Dhoon Church, Maughold) and died 1945; married 1895 John Robert CORKILL 1863-1943 Glen Mona, Maughold (son of William CORKILL and Margaret KNEEN)?
Were they related to the John James Faragher in your last message, if they are the correct ones? I have a lot about Corteen, and Maughold records, but very little about German.
You will find most of the Maughold Corteen wills transcribed on Brian Lawson's website:
www.iomfhs.im/lawsons/wills/co5-will.html
Sue