Under the leadership of Andrée Salomon, OSE did manage to gather together 311 such children in three large groups, many from the Gurs internment camp, and arranged for their transit to the United States, with the help of other Organizations. These children travelled by themselves directly to the United States, leaving their parents behind, who were often still in the Gurs internment camp. These children are members of that group of Holocaust Child Survivors who are "One Thousand Children." Most of their parents later were murdered by the Nazis.