Complex sentence: She graduated from Dallas'Sunset High School in 1939, attended the University of Texas at Austin in 1939 and 1940 won back-to-back U.S. Women's Amateurs.
Split into simpler sentences: She graduated from Dallas'Sunset High School in 1939 and attended the University of Texas at Austin. In 1939 and 1940, she won back-to-back U.S. Women's Amateurs.