On 4 July 1941, a plaque was unveiled in the crypt of St Paul's Cathedral, London. The inscription reads: "An American citizen who died that England might live". The decision to unveil this plaque on American Independence Day was probably a political one; the United States had not officially joined the war and the British Prime Minister, Winston Churchill, was keen to popularise Fiske's story. The plaque was unveiled by Sir Archibald Sinclair, the Secretary of State for Air. He said at the ceremony: