When professors entered their classrooms last Friday, they saw the familiar faces of their students, plus siblings, parents, grandparents and other relatives. Family weekend at Bowdoin, which took place last weekend, always includes invitations for parents to attend classes with students. Throughout the rest of the weekend, families also attended Sarah and James Bowdoin Day, sports events, concerts and performances, and even a Haunted Bowdoin tour led by David Francis, Bowdoin’s senior interactive developer.