Charlotte Mildred (Mildred) Langton (1868–1887)
Charlotte Mildred (Mildred) Massingberd (1887–1900)
Charlotte Mildred (Mildred) Darwin (1900–1940)

Daughter of Edmund and Emily Caroline Langton. Assumed the surname Massingberd following her mother’s inheritance of the Massingberd family estate at Gunby, Lincolnshire, in 1887. Married Leonard Darwin in 1900.