It wasn’t until after his grandfather’s death that he began to learn more about the man and the president. “The only difference between me and any other child learning the Truman administration was that I could go home and check the facts,” he said. Daniel’s mother, the president’s only daughter, was both fiercely protective of her father and tired of being in the public eye. “We walked out of a restaurant one night in New York, my dad, mom and I, and another customer touched my mom on the shoulder and said, ‘Excuse me, aren’t you Margaret. Truman? ‘ And my mom smiled and said ‘No’ and walked away. I thought my dad was going to get killed because he said, ‘No, no, no, she’s kidding. It really is Margaret. “