REMOVE

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

WHAT

1. albumen print (1)
2. landscape, mountain (1)
3. 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)

WHEN

1. 1867 (1)