I'm a bit late joining the party, but since this thread has been recently updated I thought I might add a few words m'self.
Like Randy, I would presume to have more than average knowledge of a certain subject. That subject being cabins. I have been told that Pellegrino made a mess of the cabin allocations in his book, so I found the book in a library to have a look at this mess ... and boy was it a mess!!
Several passengers have more than one cabin, some are in the wrong cabins. He gives Edith Rosenbaum E63 for her luggage! There was another passenger in that cabin originally, although he supposedly moved to an outer cabin with a porthole. In any case, it is not clear whether Edith did have a second cabin, possibly not, but even if she did, it would have been nearby, a vacant cabin on A deck.
He has Candee and Rheims on B deck. However, according to the supposedly never before seen Candee account (which is on his web site - and about which I have many, many doubts) she was on A deck. I have no idea where she was, but I have a feeling both decks are wrong (however that is just that, a feeling).
However as for some proof, Rheims was on A deck and he was continuously interrogated about that and went so far as to draw a diagram of where he was and where he was standing when he saw the iceberg. There is no doubt Rheims was on A deck and not B deck.
There are plenty of other sources, such as the "Cave list" which would prove much of Pellegrino's mess to be wrong.
Daniel.