No way am I a tree expert but it looks like a decorative pear tree. Bet they all are and some of them have pears. I have decorative pear trees and one of them has fruit every year...so loaded we have to pick them before they break the limbs...they are large and we and others pick and cook them. They taste like apples...so they are edible... but the other two have never had one pear that I ever saw.
What you have is one mama and two daddy trees.