Mary Langton (1871–1887)
Mary Massingberd (1887–1894)
Mary Montgomery (1894–1950)

Second daughter of Edmund and Emily Caroline Langton. Assumed the name Massingberd following her mother’s inheritance of the Massingberd family estate at Gunby, Lincolnshire, in 1887. Married major-general Hugh Maude de Fellenberg Montgomery in 1894.