Hi Dean! Nice to see you here at Forestry.com! I understand what you’re looking for but I can’t remember I have ever seen someone doing that. To re-errect windthrown trees. But it might be possible if the trees are not to big and if you do it short time after it has fallen. And probably it must bee a tree that have still gave some kind of soil contact with roots via a “hinge”. But to do this with big and mature trees in a large scale might not be feasible. I will look trough what I can find here and will be back if there is something useful./tbj.