Crockett Johnson’s Barnaby, Volume Four (1948-1949): Notes and queries. UPDATED!

Good news: I’ve finished the Afterword and Notes for Crockett Johnson‘s Barnaby Volume Four: 1948-1949 (co-edited with Eric Reynolds, and coming next year from Fantagraphics)!  Revision to first sentence: we might put “finished” in quotation marks because there are a few references that stump me.  Perhaps you can help? At the back of each book, I…