סטיבנסון, עמ' 56–57. Charles S. Stevenson (1934). "A Biography of George Huntington, M.D.". Bulletin of the Institute of the History of Medicine. The Johns Hopkins University Press. 2 (2): 53–76. JSTOR44437779.
סטיבנסון, עמ' 61. Charles S. Stevenson (1934). "A Biography of George Huntington, M.D.". Bulletin of the Institute of the History of Medicine. The Johns Hopkins University Press. 2 (2): 53–76. JSTOR44437779.
