Complex sentence: Upon her husband's retirement as Chief of Surgery in 1963, the couple moved to Phoenix, Arizona, where she volunteered time to healthcare organizations, including the United Cerebral Palsy Crusade.
Split into simpler sentences: Upon her husband's retirement as Chief of Surgery in 1963, the couple moved to Phoenix, Arizona. Edith volunteered much time to healthcare organizations, including the United Cerebral Palsy Crusade.