Ok my error...mum was called Margaret England and her sister was called Veronica born in 1930.
I have dug out the info I found with some help years ago:
Lilian Olga Violet England born 1909 in Wandsworth
Married William R Ladds in 1941 in Birmingham
and Died as Lilian O V Ladds in 1959 aged 50
I must say I did find it strange that if she married Leslie Rogers in 1928 (in Camberwell) why she would go on to have Veronica (possibly June M) and Margaret in Birmingham and not give them their father's name ? That didn't gell with me.
All three were given the name "England" with the Mother's maiden name "England" - which may have meant that she was in a relationship, but not married ? or she may have had them by different fathers (not unheard of - my sister had 3 children by three different fathers)
I found them on the 1911 census which I emailed and I think I also discovered that Lilian's father (who was 46 years old when she was born) had been married before to a Clara Ann, I found them on the 1901 census living in Bristol they had a 13 year old son Sidney James England, living with his 74 year old mother Elizabeth.
It looks like Clara Ann and James married in Brentford in 1886 and I think she may have died in the July/Aug/Sept quarter of 1907 aged 43 in Warwickshire. He then appears to have had a relationship with Florence Emily and had your grandmother Lilian Olga Violet England in the same year (although I cannot find a marriage !)
James England appears to have had quite a good job and I think he may have travelled all over, relocating to different areas to do that job ! hence the different areas of the country