The "Alder" is your answer and they're a real native, they also love the ground you have. If you find out where they're growing, maybe ask the owner and you can dig up some small growths of them, just replant the small tree growth and in no time at all you'll have trees. When they get going, they can easily grow 3/4 ft plus a year, but they lose their leaves in the winter. When we lived in Ireland, the west, they were very plentiful. Some of the old handimen used them to make furniture.