REMOVE

1. landscape, mountain
2. Photographs
3. albumen print
4. landscape, river valley
5. George Eastman House
6. O'Sullivan, Timothy H.

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)