Yea I saw that book on one of Time's top 10 things. I figured that must have been where LDW got the name but doubted the story in those books had anything to do with biggles in VV. Other than that they are on an island.

Also, VVs Biggles must either be extremely long lived, immortal, or there are multiple people who carry on his mission since there were many generations between VV3 and VV4 and an indeterminate amount of time between each VV game. The amount of time between VV1 and VV5 is at least a few centuries.