Mary Louisa Thornton (1846-1918) (1846–1918) Parents Harriet Sarah Heber John Thornton Children Herbert Henry Randall Warren Muriel G. Warren Lilian Emily Warren Siblings Arthur Parry Thornton Charles Conway Thornton Emily Heber Thornton Francis Spencer Thornton John Thornton Grace Harriet Thornton Reginald Heber Thornton Sydney Vernon Thornton Partners Arthur Frederick Warren