Congratulations to actress Mamie Gummer and fiancee Ben Walker, star of Broadway’s “Bloody Bloody Andrew Jackson.” the couple tied the knot over the weekend, sources say, at a very small and private wedding at the home of Meryl Streep and Don Gummer, Mamie’s acting, sculpting parents. There aren’t a lot of details except that there weren’t any celebrities, it was mostly family and close friends. Mamie’s sisters were the bridesmaids. There was a regular wedding band, no Aerosmith or Tony Bennett flown in for the occasion. I do know the wedding was held outdoors at the Gummers’ Connecticut summer home. Walker has just finished “Abraham Lincoln: Vampire Hunter.” Gummer, who’ll be 28 next month, is on a tear doing TV (“Off the Map,” “The Good Wife”) and New York theater. It’s unlikely they’ll be selling wedding pictures to the tabloids. I will say that I spent time with this couple at Vanity Fair’s Oscar party this year, and they are just super. They’re even registered at Restoration Hardware if you want to send a gift. Here’s to a lot of happiness!