What's the history or per say the timeline of the Northumberland boat. Was it after the d.e. origin or before? Since d.e. and Northumberland are both semi planing hulls why is one use in states and one used north of border? Which came first? When I was up in p.e.I. I didn't see any d.e. boats. Saw some d.e. luxury yachts but no d.e. commercial or sport boats.