My eldest daughter convinced me to go with her to the public library this evening. She found five Joyce Carol Oates books to bring home and also checked out the journal of Kurt Cobain. In the car, she tells me about the book I found:
"All of Elie Wiesel's books are translated by his wife. She's the only one he trusts with his words."
Sure enough, I'm looking now at the one of the front matter pages. It says, "Translated from the French by Marion Wiesel."