This page is for Winston S. Churchill. Don't combine authors that do not have S. as a middle initial into this page.
Winston Churchill is several authors: the more famous Sir Winston Churchill who wrote history (in more than one way!), his grandson, and an American novelist. The elder Winston S. Churchill and the American met in 1901, and the British author agreed to sign his books "Winston S. Churchill."
#1 is Sir Winston Churchill, 1874-1965, British Prime Minister, the author of the bulk of the LT titles. He wrote only one novel, Savrola, so any other book-length fiction is by the American author. His 1899 short story "Man Overboard!" has been including in many fantasy and horror anthologies, so please keep these anthologies assigned to him.
#3 is Winston Spencer Churchill II, 1940-2010, the grandson of the Prime Minister, author of His Father's Son and Memories and Adventures. The grandson is also the editor of many of the compilations of his grandfather.