In 1912, at age 24, Georgia O'Keeffe boarded a train in Virginia and headed west, to the prairies of the Texas Panhandle, to take a position as art teacher for the newly organized Amarillo Public Schools. Subsequently she would join the faculty at what was then West Texas State Normal College (now West Texas A&M University). Already a thoroughly independent-minded woman, she maintained an active correspondence with her future husband, photographer...