Tweedledominance

In several of these United States, the largest two cities share their first initial. Armed with that information, can you name the largest cities in the following states? If you need a hint, click on the box to the left of the state name to reveal the initial. (In the last case, it is the three largest cities that share the initial.)

Pennsylvania:   and
Kentucky:   and
Wisconsin:   and
Washington:   and
South Carolina:   and
Wyoming:   and
Hawaii:   and
Ohio:   and and

Geography