factual correction - Adam Cain of Ballaugh had the twins by Ann Callister
Adam Cain of Ballamanagh married Ellinor Steon/Stephen - the land came via her - there were no twins to this adam
all is I think clear on my web pages.
The quote bit re Cains from 1500 comes from a transcribed book - I suspect that if newly developing theories about Manx family names being derived from places/social standing bears fruit then the old notion that all 'blogges' etc descend from one ancestor will no longer be tenable