The Emmys air tonight, and here at “Good Letters” we’re gratified that our bloggers have written about some of this year’s nominees: This Is Us. “Beginning its third season, the Emmy-nominated NBC drama devotes serious time to exploring the emotional complexities of relationships among adoptive and biological families,” writes Tania Runyan, who added to her…

Our son Eric was four years old. My husband George, after teaching all day at Tufts University, would walk over to Tufts Day Care Center, pick Eric up, and walk home with him, Eric riding in the carrier on George’s back. As soon as they’d get in the house, they’d both plop down in front…