MARK TWAIN ON CROSSCURRENTS, 11/30: Riverboat pilot, famed author, and popular lecturer, Samuel L. Clemens, a/k/a Mark Twain, was born on this date in 1835. Gavin and Wyatt run to join Mark Twain relaxing in the yard of Twain’s house. You can be float down a river of tunes as John pilots the radio with Mark Twain on Crosscurrents, 11/30 at 8 a.m.