“After a few minutes Truman went back inside the White House, so he could call his mother and personally deliver the news: World War II was over. ("That was Harry," ninety-two-year-old Mamma Truman said after hanging up. "Harry's such a wonderful man... I knew he'd call.")” HumorPresidencyHarry TrumanUnited States History Book:The Accidental President: Harry S. Truman and the Four Months That Changed the World Source: The Accidental President: Harry S. Truman and the Four Months That Changed the World