John Herbert Holdridge was an American foreign service officer and diplomat, who was best known for having taken part in, and later recounted, Henry A. Kissinger's secret 1971 initiative to restore US diplomatic relations with the People's Republic of China. He also served as U.S. Ambassador to Singapore and Indonesia . Wikipedia*
On the C-SPAN Networks:
John Holdridge has one video in the C-SPAN Video Library; the first appearance was a 2008 Forum.