With the assistance of two men identified only as Smith and Vaughn , he excavated the depression and discovered a layer of flagstones two feet below .
McGinnis , who believed that the depression was consistent with the Captain Kidd story , sought help with digging .
With the assistance of two men identified only as Smith and Vaughn , McGinnis excavated the depression and discovered a layer of flagstones two feet below .
McGinnis , who believed that the depression was consistent with the Captain Kidd story , sought help with digging .