Kate and Margaretta were sent to nearby Rochester during the excitement – Kate to the house of her sister Leah (now the married Leah Fox Fish), and Margaretta to the home of her brother David – and the rappings followed them. Amy and Isaac Post, a radical Quaker couple and long-standing friends of the Fox family, invited the girls into their Rochester home. Immediately convinced of the genuineness of the phenomena, they helped to spread the word among their radical Quaker friends, who became the early core of Spiritualists. In this way appeared the association between Spiritualism and radical political causes, such as abolition, temperance, and equal rights for women.