Looks like an ash tree to me.

It does’t appear to have opposite branching, so unlikely to be ash. Can you check branching pattern?

It has a compound leaf, though, so compare to Juglens species such as walnut and butternut, though the growth pattern would be unusual for either of those.

Juglans or Carya sp.

I will get more pix tomorrow and try to capture branching (as well as look harder for fruit.)

I'd guess butternut or heartnut, or possibly a hybrid between the two ("buartnut").

I'd agree w/butternut as it is branching down very low, the bark is lighter gray than black walnut & the leaves look like they have some fuzziness. The nuts should tell.

I couldn’t see any fruit (nuts). Here is branching pattern. Bark and general habit certainly favors Butternut.

It may lack a pollinator.

I think they are wind-pollinated. You are in a colder Zone than I am, but my butternut hickory drops all its nuts in July. If he hasn't been in the house that long maybe you missed it.

You are in a colder Zone than I am, but my butternut hickory drops all its nuts in July.

Do you mean "Butternut" (J. cinerea) or "Bitternut Hickory" (C. cordiformis)?

Reading up on Butternuts, although they are monoecious, it seems the two sexes rarely mature sumiltaneously on an individual tree, so unless there’s another tree in the vicinity with appropriately mature flowers you might not get nuts.

Heartnuts and Buartnuts have probably been planted nearly as often (if not more often) as species Butternuts, partly due to the latter's susceptibility to Butternut canker disease. For more info see this publication from Purdue University that goes into great detail about butternuts, heartnuts, and "buartnuts" (aka 'buarts"): Identification of Butternuts and Butternut Hybrids

"Since the introduction of Japanese walnut [late 1800's], several generations of butternut hybrids have naturally developed, and hybrid butternuts have become more numerous across the landscape as natural selection left behind hybrid trees that resisted butternut canker disease where pure butternuts were killed by the butternut canker. As butternut hybrids became more prevalent, more hybrid seed was collected and propagated. In some cases, due to mistaken identification, hybrids were propagated and distributed as butternuts, leading to increased distribution of hybrid trees and confusion about the identity of the butternut. In some parts of the United States today, hybrids are virtually the only “butternuts” to be found."

Thanks for that link, Dave. Tons of good info, so I will try to dive deeper next time I go over.