Series I. Glass Plates contains glass plate negatives. These have been arranged by the location identified on the original packaging. There is one envelope of negatives that was found between glass plates.

The Dr. John Bryant Negatives Collection contains glass plate negatives and sheet negatives of what appear to be scenes from the east coast of the United States. All titles came from the boxes or envelopes that contained the negatives. In instances where the writing was illegible, "unknown" was used, but a copy of the original packaging was kept with the negatives. This collection has been divided into two series.