Hi
Clifford Smith's baptism is on this site and it gives his date of birth as 28 June 1919. Might help with any searches.
SMITH, Clifford (of 22 Albion Street, born 1919-06-28).
Baptised July 13, 1919, by J Trevor Lewis at St George, Brook Hill.
Parents name(s) are Emily Winifred & Charles (Carpenter).