The predecessor organizations were the Winston S. Churchill Study Unit (1968), a chapter of the
American Topical Association, and The Churchill Centre. In 2008 The Churchill Centre merged with the American Friends of the Churchill Museum, to form The Churchill Centre and Museum at the
Cabinet War Rooms, London. In 2016, with the opening of the National Churchill Library and Center in Washington, D.C., The Churchill Centre was merged into a newly formed entity once again called the International Churchill Society which combined the memberships of The Churchill Centre and the Friends of the
National Churchill Museum in Fulton, Missouri. ==The National Churchill Leadership Center (NCLC)==