Ok. I have now located and viewed the birth record of the girl born 1920.
Also that of the boy in 1922. His surname is WALKER and his given names include Davis.
The fuller details of the record which I have viewed actually do not show his father as Charles Thomas WALKER.
The space for father is blank.
Mother is recorded as Beatrice May Gully Thomas
So this information turns out to be not relevant to your search for Charles Thomas WALKER

He was not around in 1922 after all.
Sue