Agree that the first is box elder. It's a very fast growing sort of weedy member of the maple family. I've thought a lot about trying it in a laminated bow -- it's weak in tension, but surprisingly good in compression, at least on paper. Might make a treacherous self-bow but I'm thinking that a two wood with something tough for the back might have surprisingly good performance. That's all just a guess. Haven't found any locally yet, so I haven't been able to try it out. Surprising, since it tends to grow on just about any disturbed ground in a town or city environment.