I don't know the bike. I do know Knuckleheads.
I has some one year only features that give it away. The picture of your bikes lined up I see a silver Big Twin Flatty, the green 40 Knuck, white 30's VL or RL, last one looks mid 20's JD.
The bike you posted with the round tank I am not sure on. Thevonly two bikes I know with round tanks are Cleveland and Flying Merkel. How did I do.
Volkswagons were never my thing. My brother had an old bus, and that was enough for me.
I'll take a V8.
I've had a few old motorcycles though.
1958 BMW R60
1998 Harley Davidson Sportster 1200 2001Harley Davidson FXDL
1913 Excelsior model 4C
1931 Streamline Henderson model KJ
Pictured is a 1924 Harley Davidson model W Sport that my dad restored.
He ended up selling it. He said it was too nice to ride. Haha!