Complex sentence: She attended the local public schools, graduating from Harrisonburg High School then attended Wilson College in Chambersburg, Pennsylvania before James Madison University in her hometown, from which she received both undergraduate and graduate degrees.
Split into simpler sentences: She attended the local public schools, graduated from Harrisonburg High School, then attended Wilson College in Chambersburg, Pennsylvania. She then returned to her hometown and attended James Madison University, from which she received both undergraduate and graduate degrees.