Books: Stieglitz, O'Keeffe, Strand, and Salisbury, an Artistic "Foursome"
One was the most famous photographer in America.
Then there was his protegee, muse, and lover, who would go on to become his wife — and one of America’s most beloved painters.
The third was a young photographer aspiring to a greatness he would eventually achieve.
The fourth, and least …