Phrenology, the theory that a person’s character is determined by the size and shape of his head, was quite popular in America during the 1850s. A phrenological analysis of Reuben Dunbar in 1851 found him to be excessive in Destructiveness, Combativeness, Aqusitiveness, Secretiveness and Firmness, while being deficient in Self-esteem and Philoprogenitiveness. He had “an unfortunate organization” in which his moral faculties were not sufficiently large to balance his animal propensities. While the phrenologist professed scientific objectivity in the analysis of Dunbar’s head, she may have been somewhat influenced the fact that, at the time, Reuben Dunbar was charged with murdering his two young stepbrothers to protect his inheritance.
