Tanner and Trevor Allan celebrated their first birthday Dec. 19, 2009.They are the sons of Chad and Beth Allan, Watterboro, S.C.They have one sister, Millie Allan, 16, and one brother, Hunter Allan, 11.Grandparents are Jerry and Betty Gibson, Summerville, S.C., and Randy and Kathy Allan, Pomona. Great-grandparents are Art and Vera Allan, Ottawa, Dave and Cora Stoneking, Vassar, and Barb Robinson, Topeka