Ted, go on line and do some research. I am sure there some wood's that are comparable to hickory strength wise. Henry built T's in a lot of far away places, maybe he used local grown lumber. I know in Austraila they have a tree called River Oak. we have a lot of it here in Florida we call it Australian Pine, kind of an invasive species, hard as a rock my chain saw struggles to cut it. Might be what you need. Rich