The document lists the names of several early 20th century photographers who were influential in the development of modern photography, including Alfred Stieglitz, Edward Steichen, Paul Outerbridge, Margaret Bourke-White, Edward Weston, Imogen Cunningham, Ansel Adams, Laszlo Moholy-Nagy, Karl Blossfeldt, Hans Belmer, Gyorgy Kepes, and Raoul Ubac.