So here it is at last, Charles Ernest's marriage certificate and I can see from it that the John Perkins whose family I have been researching lately is indeed the correct one. Trust me, I am on familiar, first name, neighbourly chatting terms with pretty well every John Perkins who has walked this land over the last two hundred years! Next step will be the arrival in about a week of John Perkins' marriage certificate. From the free BMD (births, marriages, deaths) Index, I have narrowed his wife's maiden name down to two possibilities, neither of which put her into 'baronet's daughter' category but, never mind, it's all good fun and quite fascinating.
(I wonder if BBC's 'Heir Hunters' programme would give me a job?