Dr. June Robertson McCarroll was born June 30, 1867 in the Adirondacks and began her medical career in Chicago before leaving a promising practice for Indio in 1904, where she became the sole practicing physician for the entire Coachella Valley and traveled by horseback, horse and buggy, and automobile to provide medical care throughout the valley under very primitive conditions. After an encounter with a large truck on a narrow road in 1917 forced her Model T into a sandy ditch, she conceived the idea of painting a white stripe in the center of the road to make automobile travel safer and personally painted the first known stripe in California on Indio Boulevard, then part of Highway 99, that year. A letter-writing campaign initiated by the Indio Women's Club eventually led to adoption of the practice by the California Highway Commission in 1924. She also started the first library in the Coachella Valley. She died on March 30, 1954, and a nearby portion of the freeway was named in her honor on April 24, 2002.