Share This Article 1. In 1880 he was the richest man in America. John Rockefeller Jay Gould William Vanderbilt John J. Astor 2. The Big Three Allied leaders of World War Two first met all together at this city. Yalta Casablanca Tehran Quebec 3. During Vietnam, Military Occupational Specialty 94B was this. Military police Truck driver Parachute packer Food service specialist Loading …