REMOVE

1. negatives (photographs)
2. [Mills] Hotel

WHAT

1. Buckheim, W. A. (2)
2. Portrait photography (2)
3. black-and-white negatives (2)
4. negatives (photographs) (2)

WHERE

1. Boulder (2)
2. Colorado (2)
3. [Mills] Hotel (2)

WHO

1. Snow, Charles F. (Charles … (2)
2. photographer (2)

WHEN

1. 1920 January 13 (2)