Complex sentence: Mary Geraldine Guinness (Mrs. Howard) Taylor, "Borden of Yale' 09" (Philadelphia: China Inland Mission, 1927), 256; His mother was born in Detroit on August 31,1861, to John Talman Whiting and Mary Sophia Hill.
Split into simpler sentences: Mary Geraldine Guinness (Mrs. Howard) Taylor, "Borden of Yale'09" (Philadelphia: China Inland Mission, 1927), 256. Borden's mother was born in Detroit on August 31,1861, to John Talman Whiting and Mary Sophia Hill.