Who was Georgia O'Keeffe's husband and a prominent photographer?

Georgia O'Keeffe's husband and prominent photographer was Alfred Stieglitz.

Stieglitz was an influential American photographer, modern-art promoter, and gallery owner. He first encountered O'Keeffe's work through drawings shown by the photographer and promoter Anita Pollitzer, then exhibited O'Keeffe at his New York gallery, 291, in 1916.

O'Keeffe and Stieglitz married in 1924. He photographed her extensively, and his advocacy helped introduce her work to a wider New York art audience. Their relationship was both personal and professionally important, though O'Keeffe developed an independent reputation rather than simply being known as Stieglitz's subject or protégée.

Stieglitz is sometimes mixed up with other photographers associated with American modernism, including Edward Steichen and Paul Strand. He was also a major advocate for European avant-garde art in the United States and directed several influential galleries.