Daring Prison Escapes | Escape from Leavenworth | 3

In 1909, a young convicted train robber named Frank Grigware began a life sentence at the United States Penitentiary in Leavenworth, Kansas. Leavenworth was the nation’s first federal penitentiary, touted as a state-of-the-art facility. But in the early 20th century, its prisoners endured bleak…