Faces in the crowd

Ashley Keaschall can't get the boy out of her mind. A junior in the nursing program at the University of Iowa, Keaschall, a Rock Falls graduate, volunteers a few hours every week at the school's children's hospital in Iowa City. She spends that time trying brighten the days of youngsters who are dealing with serious diseases. One particular boy Keaschall visits received a bone marrow transplant five weeks ago. He hasn't been outside of the hospital walls since. P That's one of the many faces Keaschall will carry with her Sunday morning when she lines up at the start line of the Chicago Marathon and runs farther than she ever has. "I've always wanted to do this," Keaschall said of running a marathon. "When I was competing in high school, I w