John Dillinger (1903-1934) was the most famous modern American criminal. During the Depression of the 1930s his bank robberies were generally regarded as revenge on society's financial institutions that were unfairly exploiting the economically distressed.

John Dillinger was born on June 22, 1903, in Indianapolis, Ind. His mother died when he was quite young; he was raised by an older sister and eventually, when his father remarried, by his stepmother. At 16 he quit school and began to work intermittently. A year later his father moved the family to a farm near Mooresville, Ind. Dillinger rejected rural life and spent most of his time in the surrounding cities.

In 1923 Dillinger fell in love, but the girl's father ended the romance. Embittered, Dillinger stole a car which he later abandoned. Afraid of being prosecuted, he joined the Navy but deserted a few months later. In 1924 he was arrested for assault and attempted...