Nearly 20 years ago, former President George H.W. Bush wanted to sponsor a Filipino boy named Timothy through Colorado Springs-based nonprofit Compassion International — but first, he needed a pseudonym. “He’s passed away now, so it’s probably not a classified name anymore — it was George Walker,” said Wess Stafford, Compassion president emeritus. “That’s the same name that he used, apparently, whenever he checked into a hospital and they needed to have it unknown that he was in there.” Bush’s security team was worried about Timothy’s safety, said Stafford. If word had gotten out that the child was communicating with...