The leader of this group was the legendary Dr. Wernher von Braun. Braun was known as one of the world's leading authorities on space travel, and his expertise in rocket science was instrumental in America landing a spacecraft on the Moon.
In Robert Trundle's book, "Is ET Here?" he discusses Clark C. McClelland's relationship with a number of German scientists who were assigned to the ABMA. (Army Ballistics Missile Agency), first and foremost among them was Von Braun. These same men would eventually become part of NASA.