Thank you for supporting our journalism. This article is available exclusively for our subscribers, who help fund our work at the Chicago Tribune. King Leopold III of Belgium, center, stands with members of the 106th Cavalry Regiment after his rescue from a Nazi compound May 6, 1945, in rural Austria. The king later told members of the Illinois National Guard unit he would "never forget that day that my family and I had the good fortune to be delivered from the enemy by your unit.” (Illinois National Guard/HANDOUT) It took a few years, but Adriana Schroeder dug deep and finally...