Great, thanks! I thought she could be Phyllis Houghton Pettigrew, born 3rd quarter 1919. Her mother had 6 children registered under her maiden name Pettigrew, all born in Hull between 1917 and 1926. The eldest, John William Pettigrew, was born in 1917 and died in 1919. His burial record says mother Elizabeth Pettigrew (spinster). I couldn't find any other records for Phyllis Houghton Pettigrew.
I think her mother Elizabeth PETTIGREW married William H. HOUGHTON in 1928 (Sculcoates).