Glass Negatives

My Husband and I purchased 2 boxes of Glass Negatives at an estate auction in Staet Line, Pa. They were in the original boxes, New York Dry Plate Co. We have osted two of them to see if anyone could help us determine when and where they were taken. We really don't know a thing about these negatives. They appear to be some what wealthy socialites at various functions but other than that, we know nothing. So, if anyone can help us identify them, we would really appreciate your help. Thanks so much.