What was the name of Georgia O'Keeffe's husband Alfred Stieglitz's final New York gallery?

Alfred Stieglitz's final New York gallery was called An American Place.

Stieglitz opened An American Place in 1929 at 509 Madison Avenue in New York City. The gallery continued his long effort to present modern American artists and photographers, including Georgia O'Keeffe. It remained active until his death in 1946.

The name can be confused with Stieglitz's earlier galleries. The most famous was 291, formally the Little Galleries of the Photo-Secession, which operated at 291 Fifth Avenue. After 291 closed, he ran the Intimate Gallery and then An American Place. These spaces were important venues for photography and modern art in the United States.

O'Keeffe's association with Stieglitz's galleries helped bring her work to public attention, but An American Place was not her own gallery or studio. It was operated by Stieglitz as part of his broader program of exhibitions. The gallery's title is therefore a specific historical name, not a general description of his support for American artists.