Hamilton, Allan McLane. 1848-1919. Types of insanity: an illustrated guide in the physical diagnosis of mental disease. New York, W. Wood & company, 1883.
Hamilton was the grandson of the famous statesman, Alexander Hamilton, and was a pioneer American neurologist and interesting figure in his own right. He served as an expert in the trial of the assassin of President Garfield, and examined the assassin of President McKinley, on both cases to ascertain their sanity.
Having been awarded his M.D. from the College of Physicians and Surgeons of New York, Hamilton began his professional career in New York with the help of J. Marion Sims. By the early eighties he had acquired a large practice as a neurologist. At over one hundred murder trials where insanity was the issue, he was present either as a witness or in an advisory capacity. He founded the New York Psychiatric Society along with Dr. Pearce Bailey and H. R. Stedman of Boston.