Alfred Stieglitz

Renowned both for his photography and his promotion of modern art through his galleries "291" and "The Intimate Gallery", and magazines such as '291' and 'Camera Work'. He was also married to painter Georgia O'Keeffe.

January 1, 1864 – July 13, 1946

Further Reading
Ever an Anarchist - Allen Antliff (https://theanarchistlibrary.org/library/ever-an-anarchist)