I was thinking black walnut



and some kind of ash tree what do people thing?

Can you tell with both trees if the compound leaves are alternate or opposite? Walnut would be alternate, ash would be opposite as shown on this page:

https://www.uwgb.edu/biodivers...

To eliminate other possibilities, especially if one or both is alternate, can you also take pictures of individual leaves (not individual leaflets but a whole leaf including all leaflets) against a white sheet of paper so that we can see them clearly?

A photo of the entire tree, and photo of the entire leaf, branch formation....

It would also be good to know where these trees are located.

Black walnut is easy to ID by the smell. Crush a leaf - all walnuts smell alike (and as an added bonus, you just dyed your fingers black). Look around under the tree to check for "pig noses" (half walnut shells).