REMOVE

1. landscape, mountains
2. landscape, rock
3. Photographs
4. animal, mules
5. albumen print
6. North American; American

WHAT

1. albumen print (1)
2. animal, mules (1)
3. landscape, mountains (1)
4. landscape, rock (1)

WHERE

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

WHO

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

WHEN

1. 1868 (1)
2. August, 1868 (1)