Potential Nitrogen Fixer - Plant ID?

I've seen this tree a few places around her. It looks promising. The seed pods look leguminous, but the seeds don't, although they kinda look like furry black locust seeds.
Thanks for the help. Hope the pics nice enough.
William

bump. oops. sorry about that.
W

Looks like catalpa seeds, but as a disclaimer I've only seen catalpa one time in southern Missouri, we don't have many of them out here in the west Texas scrublands.

Hrumph. That would be unfortunate. I've been passing by this tree for 3 years thinking, "hey, I should find out if it's a nitrogen fixer". Too bad. Hope the seeds I accidentally spread don't grow.
W