sentences:  The teaching of these four children was taken on by their elder half sister Beatrice who was destined to make her mark as an educationalist.In 1888 Chamberlain married for the third time in Washington, D.C. His bride was Mary Crowninshield Endicott (1864–1957), daughter of the US Secretary of War, William Crowninshield Endicott.They had no children, but she eased his acceptance into upper-class society in the second half of his career.