Yousuf Karsh, via Jo Tartt
Brooklyn Museum. "Georgia O'Keeffe: Living Modern," March 3–July 23, 2017.
Reynolda House Museum of American Art, Winston-Salem, NC. "Georgia O'Keeffe: Living Modern," August 18–November 19, 2017.
Karsh, Yousuf. Karsh: A Fifty-Year Retrospective. 1st ed. Boston: Little, Brown and Company, 1983. p. 113.