Doonesbury by Garry Trudeau for September 17, 1979
September 16, 1979
September 18, 1979
Transcript:
Joanie: Where is she? Rick: In the living room. Joanie: Oh, Rick, I knew this was going to have to happen sooner or later. I'm so ashamed... do you think she hates me? Rick: I don't know. I guess she'd have good reason. Joanie: You're mad at me, too, aren't you, Rick? Rick: Me? Not at all. Look, I'm planning dinner. Got any others?
Based on earlier comics, yes. Comments made earlier in the strip told us that Joan had children, which means at least 2. However, JJ is the only one ever mentioned again,