"Hi again GRM. It's just struck me that the actual pairings may not be important provided the unclued ones are highlighted."
They're not and the preamble doesn't call for any highlighting but it's nice to get things correct and verifiable.
The entries in Brewer for the individual gods indicate that they were Roman not Greek but if you look under 'oracle' all becomes clear and the title is explained and justified. In fact I thought the title to be rather good.