Complex sentence: Light Townsend Cummins, Ph.D (born 1946) is an educator and historian who grew up in San Antonio, Texas, graduating from the San Antonio Academy and Alamo Heights High School.
Split into simpler sentences: Light Townsend Cummins, Ph.D (born 1946) is an educator and historian. Cummins grew up in San Antonio, Texas, graduating from the San Antonio Academy and Alamo Heights High School.