Eleanor Mildred Sidgwick British mathematician & college principal (1845-1936) (1845–1936) Parents Lady Blanche Gascoyne-Cecil James Maitland Balfour Children Siblings Alice Blanche Balfour Arthur Balfour Evelyn Strutt, Baroness Rayleigh of Terling Place Gerald Balfour, 2nd Earl of Balfour Eustace Balfour Francis Maitland Balfour Cecil Charles Balfour Partners Henry Sidgwick
