About two months before the march, the Big Six broadened their organizing coalition by bringing on board four white men who supported their efforts: Walter Reuther, president of the United Automobile Workers; Eugene Carson Blake, former president of the National Council of Churches; Mathew Ahmann, executive director of the National Catholic Conference for Interracial Justice; and Joachim Prinz, president of the American Jewish Congress. Together, the Big Six plus four became known as the "Big Ten." John Lewis later recalled, "Somehow, some way, we worked well together. The six of us, plus the four. We became like brothers."