Why are some photographs scanned front and back, and some just front? We only scan the backs if there is information; if the back has not been scanned, it is blank.
What do the dimensions of a photograph measure? The dimensions refer to the image, not any cardboard frame or backing.
Can I get a file with higher resolution? Yes, with reservations, mostly due to copyright or donor restrictions. Contact firstname.lastname@example.org for more information.