 Beginning in 1916 near Suma, she placed large, well-lit signs in high-risk places, including train stations and bridges.The signs advised suicidal visitors to stop, to wait, and to visit Jo's home or office, if they were experiencing despair.Jo believed that many suicidal people in the city experienced stress, poor health, poverty, and social isolation, and that these underlying issues might be resolved or relieved without loss of life.