Frederica McMahon (died 1903) (1829–1903) Parents Emily Anne Westropp Thomas McMahon Children Mary Beatrice Byron Ethel Maud Byron Mabel Charlotte Byron Claud Gordon Byron Leila Frederica Dora Byron Augustus William Byron Siblings William McMahon Emily McMahon Georgiana Mary McMahon Thomas Westropp McMahon Jane McMahon Frederick Hislop McMahon Adolphus McMahon Charlotte McMahon Partners Augustus Byron