In 1905, Moore married Major (later Brigadier General) Sir Frederick Gordon Guggisberg, moving with him to West Africa. Over the next decade, she frequently returned to England and also toured, mostly in legitimate theatre, as well as singing in concerts. In 1908, she was one of the founding members of the Actresses' Franchise League and became very active in the suffrage movement. Her last London stage appearance was in 1914. During World War I, Moore worked in France on behalf of British soldiers. In 1918 she was honoured with the CBE for her services to her country. Moore was active in charity work during her long retirement. She was the last surviving original creator of a Gilbert and Sullivan role.