Time Magazine, Nov. 26 1945:

Millions of Americans know Caspar Milquetoast as well as they know Tom Sawyer and Andrew Jackson, better than they know George F. Babbitt, and any amount better than they know such world figures as Mr. Micawber and Don Quixote. They know him, in fact, almost as well as they know their own weaknesses. 

If the creator of The Timid Soul had done nothing but invent Milquetoast—the quavering quintessence of the Little Man at his least manly—he would have earned his modest place in the nation's pantheon.