Hatty Moulton (née Doran) was an American heiress, the only daughter of Aloysius Doran from San Francisco. In America, Moulton secretly married Francis Hay Moulton without her father's knowledge, because the older man disapproved of the match due to Frank's lack of fortune. Frank then left his wife after the wedding to search for his own fortune, so he could return to her as a rich man. Later he was reported killed. Hatty later got engaged to a British nobleman, Lord Robert St Simon, the second son of the Duke of Balmoral.