Author Peter Hernon will be at Washington Public Library Wednesday, Aug. 30, from 6:30 to 7:30 p.m., for a presentation and book signing on his book, “The Great Rescue, American Heroes, an Iconic Ship and Saving Europe During WWI.” Herron’s book shares the never-before-told story of the U.S.S. Leviathan and the extraordinary men and women who sailed on her during World War I.