Which photographer introduced Georgia O'Keeffe's work at his New York gallery in 1916?

Alfred Stieglitz introduced Georgia O'Keeffe's work at his New York gallery in 1916.

Stieglitz encountered a group of O'Keeffe's abstract charcoal drawings through the artist and teacher Anita Pollitzer. He exhibited them at his gallery, 291, without O'Keeffe's prior permission, bringing her work to the attention of New York's modernist art community.

Stieglitz was not only a photographer but also an influential promoter of modern art. His galleries presented European avant-garde artists alongside American artists, helping change how modern art was understood in the United States.

Stieglitz later became O'Keeffe's husband, but their professional relationship began before their marriage. The 1916 exhibition is the key event linking him to O'Keeffe's public emergence as an artist.