Ireland, Births and Baptisms, 1620-1911 list Mary Ellen Randall, born 3 Oct 1873, Queenstown, Cork, Ireland, Father Richard Randall, Mother Johanna Sullivan (FHL Film Number 255892) - can this date of birth be tied to Mary Ellen Mayne to tie her to this record?
Mabel married Charles Richard Mayne in 1940. Curiously, her record in the 1939 Register has been ammended by hand from Sumpner to Mayne. Was she already living as a married woman at that point?
Ellen appears to disappear after the 1901 census. The Ellen Pengelly living in Rose Cottage, Tamerton in 1911 is too old at 55 and described as a widow.