looking at the order of the 1939 census may give you a clue The Reddings and Kylmore are close by and also today in GL15 6NL.

Births Mar 1932 (>99%)
Morgan Robert G Howell Chepstow 11a 20

Child Surname Child Forename Mother's Former Name Year District Office Register Entry
MORGAN Robert George HOWELL 1932 Forest of Dean Chepstow, Lydney 38 470