The summary of an 1875 letter from a man in San Francisco to his mother and sisters in Salem, Massachusetts: "Letter discusses Hooper's work as a 'magnetic healer,' his wife's healing, and his preparations to enter the sauce business."
Good thing Hooper wasn't born a few centuries earlier (or, at least,
that he didn't practice his potentially "witch-like" activities in his
hometown were he alive in the days of the Salem Witch Trials).