Jean-Sylvain Bailly was a French astronomer and orator, one of the leaders of the early part of the French Revolution. He served as the mayor of Paris from 1789 to 1791 and was ultimately guillotined during the Reign of Terror.
Bruno Walter was a German-born conductor. Born in Berlin, he is known to have lived in several countries between 1933 and 1939, before finally settling in the United States in 1939. Though he was born Bruno Schlesinger, he began using Walter as his surname in 1896, and officially changed his surname to Walter upon becoming a naturalised Austrian in 1911. Walter was for many years active as a composer, but his works have not entered the repertoire.
Dame Agatha Christie was a British crime writer of novels, short stories, and plays. She also wrote romances under the name Mary Westmacott, but she is best remembered for her 66 detective novels and 14 short story collections (especially those featuring Hercule Poirot or Miss Jane Marple), and her successful West End plays.