The dad driving in the illustration kind of reminds me of Hunter S. Thompson. This is how Ralph Steadman's work might have looked without LSD. The title should be Fear And Loathing Across America (typical lassez faire attitude of the times, just look at the junk falling off the back of the vehicle). Actually, I was just thinking how this image reminds me of similar ones in the World Book Encyclopedia set my mom used to have when she was a kid. I especially liked the illustrations of manufacturing processes with all the machinery illustrated connected by conveyor belts, all very automated and modern (kind of like a simplified version of How Things Work). Usually they'd be in tri-color with pink, blue and black. I wouldn't want to hijack your idea for this blog, but are pin-ups welcome (fitting for SG). Here are a couple by Jack Cole, a short-lived illustrator of the times:

SPOILERS! (Click to view)

I am a vintage/retro illustration freak. I love it. I love the loops, and curlies and the happy faces and the dark lips and the strong lines, and the innocence of it all. The camping scene is purely care-free, the family is all happy to be there and have some good, clean fun together. (And you're right, it does look like the Doc! )
The Jack Cole ones are innocent too...in the bombshell kind of way. I've never seen his work before; I really like it. Thanks for posting.

I love it.

Did I kill this thread? Sorry.

Those illustrations are so inspiring as a Graphic Designer.