We had Dr Nicholas Williams from UCD here for Feailley Ghaelgagh a week or so ago, and he mentioned an affinity with the 'Gaylick' spelling Philippa mentions.
As to Bishop John, I doubt very much my family claims descendency. I have a feeling they were sheep stealers who left Scotland and changed the name to protect the guilty somewhere along the line.
To Annraoi, I thought my reply to her question was lost during my period of strife, but actually it was posted to the Mrs McGrath thread, and read:
Shen kiart, Annraoi, as ta mee foast jannoo ny naightyn myr ayrn jeh'n chlaare aym fastyr Jedoonee er Radio Vannin, 'Claare ny Gael'.