COLUMBUS, Ohio—As Holocaust survivors languished in displacement camps around Europe at the close of World War II, the U.S. Army gave them some of their first tangible connections to their faith since before the war: passages from the Talmud. Now two pieces of that limited printing have ended up in the hands of an Ohio rabbi, who will be using one in a pre-Passover service on Friday even as historians ponder their rarity and debate their impact on history.