Alfred Stieglitz was best known for photography besides his marriage to Georgia O'Keeffe.
Stieglitz was an influential American photographer, publisher, and gallery owner. He helped establish photography as a recognized fine-art medium in the United States and promoted modern European and American artists through his galleries and publications.
He first encountered O'Keeffe's work through drawings sent to him in 1916. Stieglitz exhibited her art at his gallery 291 and later photographed her extensively. They married in 1924 and remained together until Stieglitz died in 1946.
Stieglitz is sometimes described only as O'Keeffe's husband, but his own career was highly significant. His photographs include urban scenes, portraits, clouds, and the famous Equivalents series, while his galleries introduced audiences to artists such as Pablo Picasso and Henri Matisse.