Not a hickory, for sure. Could very well be a species of ash. Looks like the leaves/twigs are opposite. Could also be some exotic ornamental tree. If it's a native tree, I'd say it's a species of ash, but it's hard to say for sure from those photos. If it was an eastern tree, I could tell you, but there's a lot of trees out there that I'm not familiar with.
...Half a yard full of crap to cook on like everybody else...
Just a hungry hillbilly lookin for a dead critter to cook
in one throwdown,