 During the 1890s, with her husband's health declining, Helen assumed greater and greater responsibility for the businesses, taking full control upon his death in 1901.She remarried in 1902 but continued to own the opera company and run most of the Carte business interests until her death, when they passed to her stepson, Rupert D'Oyly Carte.Although the D'Oyly Carte Opera Company's operations decreased after Richard's death, Helen staged successful repertory seasons in London from 1906 to 1908, establishing that the Gilbert and Sullivan operas could continue to be revived profitably.