Born in San Antonio, Henry grew up in Dallas and started diving at age nine. While attending Hillcrest High School, he was coached by Dave Browning, father of Olympic great Skippy Browning, and won two Texas state high school one-meter springboard titles. Throughout his four years at Indiana University, Jim was coached by the legendary Hobie Billingsley. During that time, he won four Big Ten championships, five NCAA titles and 10 AAU indoor and outdoor championships on the one- and three-meter springboards. He was regarded by many as one of the best one-meter divers of all time, having won 10 straight NCAA and AAU national championships on that board. Jim won the bronze medal in Mexico City at the 1968 Olympic Games on the three-meter springboard and in 1969 was ranked as the number one springboard diver in the world. Jim graduated from IU Dental School and is currently practicing dentistry in Colorado Springs. He and his wife Sue have two children and five grandsons.