Hi Frank, Derry Twp HS P.O. Box 316 50 N. Linden Rd. Hershey, Pa. 17033 717-5200748 Hours 12 - 4:30 M-W Sat 9-2 The HS is located, at least I am told, close to the Hershey Post Office. I tried three times and could not find it. Hummelstown Area HS P.O. Box 252 Hummelstown, Pa. 17036 717-566-6314 Hours - When I was in Hummelstown they were only open Thursday 2 - 8 Located behind the Zion Lutheran Church. Zion is on Main St., Hummelstown. Going east it will be on your left side and it is a reddish stone. Turn at the church, there is a small parking lot and across the little alley is the HS. Sorry, I do not remember the name of the alley. If you give them a call maybe you could work something out for another time. Great people. Small, but they do have some good info. Gail