Walking past the countless photos of Holocaust survivors and victims at Warsaw’s POLIN Museum of the History of Polish Jews in 2016, New York-native Daniel Patt was haunted by the possibility that he was passing the faces of his own relatives without even knowing it. For Patt, a 40-year-old software engineer now working for Google, that sort of conundrum presented the potential for a creative solution. And so he set to work creating and developing From Numbers to Names (N2N), an artificial intelligence-driven facial recognition platform that can scan through photos from prewar Europe and the Holocaust, linking them to...