REMOVE

1. transportation, horse drawn …
2. artifact, camera
3. landscape, valley
4. albumen print
5. landscape, hot spring
6. US, NV, Sioux Spring

WHAT

1. Photographs (1)
2. albumen print (1)
3. artifact, camera (1)
4. landscape, hot spring (1)
5. landscape, valley (1)

More 

WHERE

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

WHO

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

WHEN

1. 1868 (1)