concluded Elmer Luchterhand, a sociologist at Yale who interviewed fifty-two concentration camp survivors shortly after liberation. Pairs stole food and clothing for each other, exchanged small gifts and planned for the future. If one member of a pair fainted from hunger in front of an SS officer, the other would prop him up. , wrote Eugene Weinstock, a Belgian resistance fighter and Hungarian-born Jew who was sent to Buchenwald in 1943. Finally the death of one member of a pair often doomed the other. Women who knew Anne Frank in the Bergen-Belsen camp said that neither hunger nor typhus killed the young girl who would become the most famous diarist of the Nazi era. Rather, they said, she lost the will to live after the death of her sister, Margot.