Some authors seem to go on for ages and they don't appear on boards like this because they often stay out of the public eye. Many people simply assume they're dead. However the following are unlikely to be setting sprint world records or clocking up high sales figures for pin up calenders these days.

J.D 'Catcher in the Rye' Salinger, 1919 -

Harper 'To Kill a Mockingbird' Lee, 1926 -

Robert M 'Zen and the Art of Motorcycle Maintainence' Pirsig, 1928 -