Filmmaker Jennifer Siebel Newsom was among the honorary degree recipients at Simmons College’s commencement ceremony over the weekend. A onetime actress and the wife of California’s Lieutenant Governor Gavin Newsom, Siebel Newsom co-executive produced the Oscar-nominated documentary “Invisible War,’’ about sexual assault in the US military. . . . At 26, Millennium Campus Network cofounder Sam Vaghar was the youngest person ever to deliver the commencement address at Lynn University.