John Edwards walked his daughter Cate, 29, down the aisle today as she married her Princeton University sweetheart, Trevor Upham, 30. A 4 p.m. ceremony at United Methodist Church was followed by a reception on the lawn at the Edwards' home, reports People.com. An altar candle in the church was lit in memory of Cate's mom, Elizabeth Edwards, who died 10 months ago from breast cancer. "We want this to be really happy and joyous and that's what my mother would want," Cate, 29, told People in the days before the wedding.