Perhaps this is the marriage in the UK that you are referring to between George and a woman named Doreen:
George R. SCORER
Spouse: Doreen C. WARD
Registered: June Quarter 1962
Registration district: Wandsworth, Surrey
Page Number: 1247
If this marriage is correct then it took place after Annie May died. Trees here on Ancestry state she died in Feb 1962.
I strongly doubt that George was forced to marry in 1937 as it is illegal to make anyone marry against their will, and I would hope that they wouldn't find anyone who was willing to perform the ceremony.
George and Annie's son Peter died in 1941 which would have made Richard aged 4, not 2. George was not discharged from the Army till 1944 and those records may contain correspondence that will indicate where he was in the years following. They will also tell you if George had any previous military experience or contact prior to enlisting in 1940.