Been looking at this as always enjoy a good mystery.
Gladys M. Rosewarne married Frederick W. Whelpdale 1951 Paddington - so, neither Derek or Roger born as Whelpdale.
Eventually found that Derek J. Rosewarne, mmn Rosewarne, was born Mar.qtr.1941 (not 1938) and Roger J. in 1948 Paddington.
Gladys was probably the Gladys M Rosewarne birth Dec.1919 Shoreditch, mmn Gibbons.
A Gladys Maud Bates born 2/10/1919 died Mar.1972 Hillingdon. Cannot see a marriage for Gladys to a Mr. Bates though.
Annette
