Question: Who is the spouse of the founder of magazine Camera Notes?
Sentence (from "Camera Notes"): It is valuable today both as a record of photographic aesthetics of the time and for its many high-quality photogravures by photographers such as Stieglitz, James Craig Annan, F. Holland Day, Robert Demachy, Frances Benjamin Johnston, Gertrude Kasebier and Clarence H. White.
Relevant evidence: No