Call the Pennsylvania Department of Motor Vehicles (DMV) they will be able to tell you. If you don't have access to contact them any police department across the US should have access to that so they could tell you as well.
you should contact the dmv there. I can't think of the capitol of pennsylvania but that city would be where you would need to call the dmv and they can check the records for you.
The best way is to send a letter to the Motor Vehicle department in PA, with your driver's license number and address. You will need to use their form located on the internet. You will be charged a fee for this information.