‘A Model Human Being’: SLU Pediatrician Cared for Children with Cancer
Dennis "Denny" M. O'Connor, M.D. (A&S '63, Med '67), professor emeritus of pediatrics at Saint Louis University School of Medicine, died Tuesday, Feb. 3, 2026. He was 83 years old. O'Connor dedicated more than 50 years to pediatric care, specializing in treating children with cancer, blood disorders and infectious diseases.