REMOVE

1. portrait, group
2. albumen print
3. architecture, camp
4. Photographs
5. North American; American

WHAT

1. albumen print (1)
2. architecture, camp (1)
3. personage, geologist (1)
4. portrait, group (1)

WHERE

1. North American; American (1)
2. US, UT, Wahsatch Mountain … (1)

WHO

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

WHEN

1. 1869 (1)