Here's the last of that issue of PLOP! minus the letters page and ads. Maybe in a few months when I run out of stuff, I'll post just the Basil Wolverton covers. Even if there were no content inside, the covers were worth the price alone.
Lee Marrs was an underground cartoonist best known for PUDGE, THE FAT GIRL BLIMP. Her work shows up in some mainstream comics and humor magazines now and then.
Don "Duck" Edwing was mainly a ghost writer for Don Martin and moonlighted for other humor magazines under pseudonyms. I guess because this was a comic book, he was able to use his real name in something that wasn't MAD. David Manak is also a MAD contributor and did SPY VS. SPY for a while.