Presidential Physician: Howard Burchell
- Was a cardiologist at the Mayo Clinic when Johnson had his 1955 heart attack. Burchell, along with J. Willis Hurst and James Cain, consulted on Johnson's case.
- Anonymous. "Past & President: J. Willis Hurst and LBJ." Emory Medicine Magazine. pp 28-33, Autumn 1996. On-line at emory.edu.