Hello Carole.
Reference Ronald Davies, I have found and talked with his brother's grandson. Ronald's brother was William Henry Davies born 13th January, 1895 and he is fairly certain place of birth was Nantyglo. Monmouthshire. His death was 1976 and he died in Blackpool.
William Henry Davies was brought back to Wales and is buried in Brithdir Cemetery, near Bargoed, in the Rhymney Valley, Ronald Davies and his wife Violet are also buried in the cemetery.It seems there are 6/7 siblings for Ronald Davies.
best
Ken