New Richmond is just north of River Falls,where Karl Weschke an early member of NNGA had an orchard. He grafted his hickory onto bitternut. That is bitternut not butternut. I understand there were still a few pecans on the property maybe twenty five years ago.Unfortunately there is no access to that property. I have a tree grown from a scion from the Weschke place, The nuts are not very big but do ripen early here in NC
jerry