What were the real names behind these famous pen names?

Boz. Charles Dickens
George Eliot. Mary Ann Evans
George Orwell. Eric Arthur Blair
Ellery Queen. Frederic Dannay and Manfred B. Lee Stendhal. Marie-Henri Beyle
Saki. Hector Hugh Munro
Voltaire. Francois-Marie Arouet
Maksim Gorki. Aleksei Maksimovich Peshkov