REMOVE

1. artifact, camera
2. US, NV, Sioux Spring
3. North American; American
4. O'Sullivan, Timothy H.

WHAT

1. albumen print (2)
2. animal, mules (1)
3. artifact, camera (2)
4. landscape, hot spring (2)
5. landscape, valley (1)
6. Photographs (2)
7. transportation, horse dra … (1)

WHERE

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

WHO

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

WHEN

1. 1868 (2)