Several years later, in 1907, she was drawn to the cause of helping people with tuberculosis (TB). She had already heard of an idea in Denmark in which people attached a special stamp to their mail, the proceeds of which would go to fight the disease, and decided to introduce the same idea in Delaware. Her goal was to raise $300 for a local sanitarium, using a bright red stamp she designed herself, and convinced local post offices to sell them for just 1 cent. This way, she believed, even the poorest people could help in the fight against TB.