Charles Schulz alludes to extra-marital affair in Charlie Brown strips

“Peanuts” creator Charles Schulz referenced an extramarital affair he had in the 1970s in his own Charlie Brown comic strips. Schulz, then 48 and married to Joyce Halverson, carried on the affair with Tracey Claudius, then 25. Schulz sent her love letters and cartoons of his famed characters, and Sotheby’s is auctioning a collection of those love notes on Dec. 14. In two letters from 1970, Schulz says his wife had discovered his calls to Claudius, reports AP. Soon after he drew a strip where Charlie Brown warns Snoopy he’s not allowed to go out “to see that girl beagle,” and “to start behaving himself.” When Snoopy picks up the telephone, Charlie Brown yells, “And stop making those longdistance phone calls.”