Complex sentence: Nannie C. Straus married Dr. John M. Dunsmoor (died in 1931), at the time of their wedding a school teacher, and they had one son, Dr. Robert M. Dunsmoor, Physician and Surgeon at the Georgia Street Receiving Hospital.
Split into simpler sentences: Nannie C. Straus married Dr. John M. Dunsmoor who at the time of their wedding was a school teacher. They had one son, Dr. Robert M. Dunsmoor who became a physician and surgeon at the Georgia Street Receiving Hospital.