Before Dear Abby or Ann Landers, an advice columnist beloved as Dear Mrs. Griggs already had dispensed wisdom to millions of readers for decades. Indeed, the iconic Ione Quinby Griggs became legendary for her longevity of more than half a century in the advice industry, because she colluded with her columns readers by empowering them to set the agenda of their page, the back page of the newspaper. Their letters often foreshadowed front-page news as well as modern social media in the collaboration that created a forerunner in their more sociable media. A form of community forum, the column...