Thank you so much to all of you for comments and suggestions. I will indeed be in touch again after completing some initial reading, and should I have more questions (which I am sure I will). Many thanks for pointing out Kew archives as well.
UK publications on the Channel islands have often excited controversy. A relatively recent passionate defense of the Islanders' record is:
The Changing Face of the Channel Islands OccupationRecord, Memory and MythHazel Knowles Smith Palgrave Macmillan, February 2007ISBN: 978-1-4039-8804-1, ISBN10: 1-4039-8804-8, 5 1/2 x 8 1/4 inches, 256 pages, Best wishes, Mark Roseman