REMOVE

1. gelatin silver print
2. personage, scientist
3. North American; Canadian
4. George Eastman House

WHAT

1. Photographs (2)
2. gelatin silver print (2)
3. personage, scientist (2)

WHERE

1. North American; Canadian (2)

WHO

1. George Eastman House (2)
2. Karsh, Yousuf (2)

WHEN

1. 1948 (1)
2. 1958 (1)