REMOVE

1. landscape, mountain
2. albumen print
3. landscape, river valley
4. US, CA, Donner Summit
5. North American; American
6. 1867

WHAT

1. Photographs (1)
2. albumen print (1)
3. landscape, mountain (1)
4. landscape, river valley (1)

WHERE

1. North American; American (1)
2. US, CA, Donner Summit (1)

WHO

1. George Eastman House (1)
2. O'Sullivan, Timothy H. (1)