A historian's grandmother never spoke about the Nazi era. Then he uncovered a document.

A historian's grandmother never spoke about the Nazi era. Then he uncovered a document.
<br>Greg Jenner grew up thinking his grandmother was born Catholic. That all changed on Jan. 20.Jenner, a British historian, knew that his "Mamie" was French but never thought to investigate her past. That is, until his mother contacted him with a stunning discovery about how her mother survived the Nazi occupation. The Holocaust Memorial in Berlin. Photo by Carsten Koall/Getty Images. The news came as Jenner was watching Donald Trump's inauguration, which he recounts on his blog in a breathtaking essay titled "Discovering My Family's Holocaust History.""As I winced at [Trump's] ugly oratory, and cheered myself up by retweeting droll barbs on Twitter, an email popped into my inbox from my mother. I quickly opened it, forgetting what it was she had promised to send me. Immediately it made me cry.  There in black and white was a series of scanned documents listing the details of my great-grandfather’s transportation to Auschwitz."What follows is a heart-wrenching story of love, terror, and trauma — which Jenner calls "the hardest thing I've ever written."As Jenner's mother recently discovered while leafing through a trove of old documents, Jenner's grandmother and her sister were born to a Jewish father. When the Nazis invaded, he was rounded up and transported to a concentration camp in France and eventually was sent to Auschwitz, where he was murdered. Jenner's great-aunt was deported to Auschwitz as well, which she miraculously survived, while his grandmother spent the war years in hiding. Some years later, she married a Catholic man and converted — burying her family's history in the process. The main gate at Auschwitz, where Jenner's relatives were held. Photo by Scott Barbour/Getty Images. Jenner wrote the essay with one thing in mind: Holocaust denial. Refusing to admit that the Holocaust happened, that it wasn't as severe as conventionally portrayed, or that it didn't specifically target Jews used to be a fringe phenomenon, but recently — shockingly — it