Sorry forgot Q re shipbuilding - Peel had some shipbuilding and is just down road from Michael - as did Ramsey and Douglas (see www.manxnotebook.com/fulltext/hist1900/ch42_2.htm - however ships carpenters were also required for repair of vessels and would always be in demand - the connection with the North is possibly because most Manx emigrants were from the Northern Parishes and went out to join family already established - no doubt an uncle would find work for his nephew etc.