The first Unionist Party of South Africa leader, from May 1910, was Leander Starr Jameson. He was created a Baronet after the Union of South Africa came into existence and was thereafter known as Sir Leander Starr Jameson. Dr Jameson was famous as the leader of the ill-fated Jameson Raid before the Second Boer War. He had also been Prime Minister of Cape Colony from 1904 to 1908.
