On the 1939 Register there is a Cyril Francis (no middle initial) b.1914 at 2 Sea View, Cefn Cribwr, Penybont (Bridgend). No middle initial. I do not subscribe so cannot see the full date of birth.
I was looking at that entry too and it appears he's with
Thomas John Francis 1883
Margaret Ann Francis 1886
they married Sep 1904 Bridgend
Beale Margaret Ann
Francis Thomas John
but I cannot find a birth registered Mar qtr. 1914 for Cyril Francis mmn Beale

He doesn't appear to be with Thomas & Margaret in 1921 Glamorganshire
Thomas Beale 1864 Wick, Glamorganshire
Jane Beale 1863 Glamorganshire
Thomas Beale 1896 Glamorganshire
Cyril Beale. 1902 Glamorganshire
Thomas John Francis 1883 Coychurch
Margerate Ann Francis 1886 Glamorganshire
Need Schoch to confirm Cyril's fathers name from the 1941 marriage cert. to see if we are looking at the correct Cyril.Question the death of Cyril Benjamin Francis on CWGC site (link provided) there is no mention of a wife but on the additional note it does mention his parents - is this usual?