Hello historians, I recently bought some glass plate negatives that I could tell were military in nature. Upon closer look and a bit of amateur development with a homemade lightbox and my regular DSLR, I was able to see that the two plates contain about half propaganda postcards, and half are original photos. Two of the photos are of dead soldiers...one a mass grave, and the other of a skeletal soldier dressed and propped up to make it look like he was relaxing on a beach or something.

Is there ANYWHERE or ANY organization that would be interested in such negatives? I know there are plenty of WW1 photos out there, but with the mass grave and the body, I didn't know if that would spark historical interest. There is also what appears to be a downed plane, with soldiers standing around it. Thank you if anyone can guide me in the right direction. Money is not my objective, but the preservation of history.