Funny females of kid's lit

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Are you a fan of funny female kid's book writers?  If so, head on over to Betsy Bird's blog to weigh in.  I've listed my favs, Sara Pennypacker, Lenore Look, and Linda Bailey. But if you're think or reading along different lines, now's the time to put your favourite funny woman forward.  I'm really interested to see who the top choice will be.