Well this has been fun, and I think the color of that lumber looks very much like the locust I have worked with. The bark and thick sapwood does not. The color also looks a lot like the mulberry I have seen, including the wide sapwood, though I never sliced any to see the inside. The bark looks more like the elm I have seen, and I have cut only one down, and did not slice or work with any of the wood. So may more details are need from the wood cutter to see how it was to work with. The locust was very hard, lots of saw dust, no chips when cutting, and smells very bad, smell even worse if you try and burn it. Any details on the wood you guys know about might be helpful.