Robert Green Ingersoll (1833–99)

American orator and lawyer. Largely self-taught; read law for a few months in Illinois; admitted to the bar, 1854. Opened a legal practice with his brother in Peoria, Illinois, by 1858. Attorney-general of Illinois, 1866–8. Well known for his atheist views; lectured widely with a mixture of biographies and agnostic pieces.

Source

ANB