From Tulane University's 1930 yearbook.

"I'm in the graduating class.  This is a pun.  Can you see through it?  The graduate is made of glass, and so you easily should do it."  From Youth's Companion, 1904.

"She returned his stare."  From Indiana University's 1913 yearbook.

"Ask the blessing, Winslow, and remember, no puns."  From Lehigh Burr, 1932.

You already know that French poets are all orchardists; yeah, in France the pommes grow on trees.

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Gary Barwin notes: "The pun doesn’t fall very far from the tree in this one. Or the pomme.  And gives new meaning to poemtaster."

"One order of unicorn-on-the-cob."  From Andy's Adventures on Noah's Ark by Douglas Zabriskie Doty, 1902.  See A Field Guide to Identifying Unicorns by Sound.

Here's a swarm of B's from an 1865 issue of Fun magazine.

"Have just taken some light refreshment.  You remember our potato soup."  From 1906.

"If you don't turnip I'll squash you" -- some punning from 1910.

"A pun is not art": a still from Juken Sentai Gekiranger (獣拳戦隊ゲキレンジャ), 2007.

Craig Conley is a word-goldsmith. Or a word-alchemist. He mixes fun, pun and profundity in an imaginative way, thereby opening your mind like nasal spray opens up your sinuses. In this book he guides young wizards through the initial chaos of magic with amazing clarity and coherency. You won't read this book cover to cover. You will dive in wherever you like and be sure you will learn a little something that you won't forget for the rest of your life, simply because you will put it to use. Whatever that use may be. Lie down in your hammock and gently sway between the magic of imagination and reality while you utter magic words to prevent yourself from falling out when your world is rocked by this book. —George Parker, author of The Big Book of Creativity (2004)