Dr. John P. Merrill (1917 – 1984) was an American physician and medical researcher. Dr. Merrill’s sitting reads: Director, Cardiorenal Section, Peter Bent Brigham Hospital. Now known as Brigham and Women’s Hospital, this is where Dr. Merrill spent his career. He led the team which performed the world’s first successful kidney transplant and is generally credited as the “father of nephrology”, which is the scientific study of the kidney and its diseases. His portrait is freshly added to the website.