REMOVE

1. landscape, river
2. Photographs
3. albumen print
4. North American; American
5. US, NV
6. 1871

WHAT

1. albumen print (1)
2. landscape, canyon (1)
3. landscape, river (1)

WHERE

1. North American; American (1)
2. US, NV (1)

WHO

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