Hallie Barnard, a young, lively 7-year-old student at Denton’s W.S. Ryan Elementary school, loves to draw, play with her dogs and siblings and wants to be the first female president.She is also anxiously awaiting a blood donor match for a bone marrow transplant. Hallie has a rare blood disorder called Diamond-Blackfan anemia, a condition in which the body lacks enough healthy red blood cells, leaving those affected more prone to sickness and cancer.“There’s no rules in my room!” she shouted whil
