What charities focusing on children and medical issues were at the 2014 Flower Show?
This charity focused on children who made a suitcase chronicling their medical history. Volunteers were at the event outside the main exhibit area near an entrance/exit. - Terminal or chronic illness, the parents/founders lived in the Philadelphia area. I think "Sara" was in the charity name.
Answer
You are thinking of the Sara's Smiles exhibit. It was located in the Grand Hall, which is the entrance many people use, especially if they are coming in via Septa or the Marriot Hotel.