Whether or not you reading this post believe in them, ghosts fascinate Americans. A century and a half before the popularity of ghost-hunter shows on the SyFy Network and NBC’s award-winning show “Medium,” belief in spirit communication was serious and widespread in the United States. Spiritualism swept across the United States in the mid-nineteenth century and remained popular into the twentieth century. Put simply, a Spiritualist is one who believes that communication with the spirits of the dead is not only possible but also desirable. Popularized by the Fox Sisters and their "Rochester rappings," Spiritualism...