There's hundreds of more desirable trees. Now that you know the facts why are you still considering this tree? Plant a red oak or pin oak or red maple or tulip poplar or white pine or crab apple or anything else but a pear. Gee whiz, these are invasive trees spreading into natural areas for goodness sakes.

Serviceberry is a nice white spring flowering tree, it does have berries but in my area the birds eat them quickly and they are not a mess.

Blue and green ash (Fraxinus species) are native to Kansas and neither of these has berries. They have a moderate growth rate.

American basswood (Tilia americana)is also naturally found in Kansas, as is Hackberry (Celtis occidentalis) which is considered a fast grower. It does have small berries.

Consider also American Elm (Ulmus americana)- medium growth rate, 'Valley Forge' is a popular disease resistant cultivar available now.

Thanks for reconsidering the pear. In addition to considering the negative aspects of those trees, I think it is neat to plant things that are not "the usual".