Doonesbury by Garry Trudeau for October 14, 1976
Transcript:
Dick: ... and when I heard about Lacey getting 25%, I couldn't believe it! We've waited so long! Voice: You both trust the results of the poll then? Lacey: Of course we trust the poll! If you can't trust George Gallup, who can you trust?! Dick: George and I went to summer camp together in 1913. Lacey: They were cabin-mates! Dick: Even then he was nosey.
George Gallup was very much alive, and 74 years old at the time of this strip.