humorous 1968 cartoons?

My daughter, Mara, and I entered the above caption in the New Yorker Cartoon Caption Contest last night.  fingers crossed!

It got me thinking that I should find cartoons from 1968.  

Herblock (Herbert Lawrence Block) was an award-winning political cartoonist from the Washington Post whose satire was often biting and unrelenting.  See examples of his work here. Do you have a favorite Herblock cartoon?

What other cartoonists should I research?  

Please share below or here.