KERATRY, Emile de, French soldier, born in Paris, France, 20 March, 1832. His father, Auguste Hilarion de Keratry, was made a peer by Louis Philippe in 1837. The son entered the army as a volunteer, 30 Sept, ., 1854, serving in Africa during the Crimean war, and subsequently in the Mexican campaign of 1863-'5, after which he published articles denouncing the frauds and impolicy of imperial intervention in that country, he retired from the army in 1866, and devoted his attention to politics and literature. In 1869-'70 he was prominent in the corps legislatif as an active opponent of Napoleon, although he approved of the war against Prussia. At the beginning of the revolution in 1870, he was prefect of police in Paris, and as general of division under Gambetta organized nearly fifty battalions in Brittany. He was prefect at Toulouse and Marseilles under the Thiers government of 1871-'2. He has been connected with various periodicals, a newspaper entitled "Le Soir," and has published several plays and miscellaneous writings, many of which relate to the Mexican expedition, and is now (1887)about to issue a volume entitled "A travers le pass&"