Marcia Maria Grant (died 1884) (1815–1884) Parents Marcia Richards Colquhoun Grant Children Algernon Sheridan Helena Charlotte Sheridan Florence Sarah Wilhelmine Sheridan Thomas Constantine Henry Kier Sheridan Richard Brinsley Sheridan Edith Sheridan James Colquhoun Grant Sheridan Charles William Frederick Sheridan Francis John Rogers Sheridan Partners Richard Brinsley Sheridan