Tell you what Colin, lets have a go at a few of them before you let us know the full list of attendees.
Top Row Middle, is that the Green Goddess, Coronia?
Second Row down, SS France on one side and the QE2 but I'm not sure about the middle
Third Row down, United States then possibly Sagafjord or Vistafjord followed by Queen Elizabeth
Fourth Row down, Queen Mary then the Britannia followed by maybe the Berengaria.
Fifth Row down, maybe the later Britannic and, before you told us otherwise I would have said the Uganda.
The rest you have either told us or I don't know.
Anyone else fill in any more gaps?