Forgot to say, I would love to go back in time and find out why the parents split. I suspect that it was because the baby, although the father's name was put on the birth certificate, may have not been his and the truth came out, as 1911 has the baby/child listed with the mother's maiden name and later on so does her marriage certificate. The baby, her husband and son were all killed in the blitz of London when their house in Fulham was bombed.
As mentioned, the parents of the four children were also not married in the first place and the younger boy may also be from a different father!
What a carry on!
Caz