In 1986 Prof. Jan Bonsma from Pretoria, South Africa spent most of a week at the ranch in Colorado evaluating Texas Longhorn cattle. It was an honor to pick his brilliant brain. He really liked the old cows that had raised 15 to 18 calves, in fact he loved them. He sit in a chair and had us walk cattle about 100 feet straight to him. He wanted to see them at center body height. It was an honor to have him at the ranch on his last USA trip.