Baptism at St Alban's R C church in Liverpool
Born 15 October 1891, baptised 5 May 1896, Dora SAUL, daughter of Maria SAUL, 89 New Shedley (?) Street. Godmother Sarah SAUL. In the margin it says in Latin that Dora married William David LEWIS on 12 May 1912 at BV (Blessed Virgin) Mary and St Joseph's Seacombe.
So Dora is illegitimate. Maybe the middle name gives a clue to her father or it could be a family name.