In sorting some papers I found a misplaced photocopy I'd obviously intended to transcribe some time ago - now online at www.manxnotebook.com/famhist/genealgy/let_1881.htm
which is by Philip Craine and mentions John Mylcraine + also the Corkill family (I'm sure these are Wm + Jane Kaneen) but I don't immediately recognise the others - help appreciated