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Family and death

In 1890, Whitehead married Evelyn Wade, an Irishwoman raised in France; they had a daughter, Jessie, and two sons, Thomas and Eric. Thomas followed his father to Harvard in 1931, to teach at the Business School. Eric died in action at the age of 19, while serving in the Royal Flying Corps during World War I.

From 1910, the Whiteheads had a cottage in the village of Lockeridge, near Marlborough, Wiltshire; from there he completed Principia Mathematica.

The Whiteheads remained in the United States after moving to Harvard in 1924. Alfred retired from Harvard in 1937 and remained in Cambridge, Massachusetts, until his death on 30 December 1947.