From the GRO Birth Index Alldis births with mothers maiden name Vile in addition to the Ella births (although Margaret's mothers maiden name is listed as Pile! )
JAMES ALFRED ALLDIS GRO Ref 1869 Dec Quarter PANCRAS Vol 01B Page 120
EMMA EDITH ALLDIS GRO Ref 1872 Dec Quarter PANCRAS Vol 01B Page 121
ELIZABETH ANN ALLDIS GRO Ref1875 June Quarter PANCRAS Vol 01B Page 125
CONSTANCE MARIAN ALLDIS GRO Ref 1878 March Quarter PANCRAS Vol 01B Page 125
MARGARET VILE ALLDIS GRO Ref 1880 Sept Quarter PANCRAS Vol 01B Page 128