Sir Winston Churchill was not the only British Prime Minister who despised Islam. Four time British Prime Minister William Gladstone (last term ended in 1894) was not a fan either.
Via Jihad Watch:
William Ewart Gladstone (1809–1898) was Prime Minister of Great Britain four times: 1868–74, 1880–85, 1886 and 1892–94. He called the Qur’an an “accursed book” and once held it up during a session of Parliament, declaring: “So long as there is this book there will be no peace in the world.”