David Kahn designs golf courses all over America with his design company partner Tim Jackson of Jackson Kahn Design. In 2017 Kahn and his wife Karen found out their two daughters , Amelia and Makenzie had a rare disease .. Juvenile Batten Disease. It’s a fatal genetic disorder of the nervous system . David talks of golf course design and of dealing with the somewhat overwhelming situation with his daughters , all the while battling on behalf of families in this same dilemma through the Fore Batten Foundation, he and Karen started.