The name "pin oak" possibly refers to the many small, slender twigs of this tree. The bark of the pin oak tree was used by some Native American tribes to make a drink to ameliorate intestinal pain.
I could use some of that "bark tea" myself, after a long period of stomach upset due to medication side effects.
The leaves of this particular pin oak are larger than I have seen them in a long time because the yard service typically cuts the small seedling down to the ground. This time, they have let it live and grow.