REMOVE

1. landscape, mountains
2. Photographs
3. cityscape

WHAT

1. landscape, mountains (3)
2. albumen print (2)
3. architecture, mining (1)

WHERE

1. North American; American (3)
2. Peru, Cuzco (1)
3. US, NV, Gold Hill (1)
4. US, UT, Salt Lake City (1)

WHO

1. George Eastman House (3)
2. O'Sullivan, Timothy H. (2)
3. Callahan, Harry (1)

WHEN

1. 1867 (1)
2. 1869 (1)
3. 1974 (1)