I read a book lately where the writer said "for the attention of" for the person whom you are addressing and "and for the attenion of" for anyone you are Ccing. It's supposed to mean that the Cc'd person is also now formally aware or something like that. The Admiral or captain may be able to confirm or deny my ramblings.
Printed copy · Anthology Volume 9, page 393Printed copy from The Tender For Law Anthology, Volume 9, page 393 (printed 13 June 2014). Added by this site; not part of the Facebook export.