Very nice finds. You should be able to weled yhat head. I dont know if you will need to preheat it or not. I have seen many people repair axes by welding them.
@@NotanExpert-Woodworking Well it isn't magic, when wood dries it shrinks and when it gets wet it expands. When you go out hunting for old tools again look for a hammer/ax with a wobbely head on a wooden handle and just give it a try. But make sure you ram the end of the handle a few times on the floor to get the head in place and then let it soak.