Complex sentence: Born in Brooklyn, New York in on 22 March 1886, James was educated at Eton College and Christchurch College, Oxford before Joining the Coldstream Guards at the outbreak of war in 1914, serving in Salonika.
Split into simpler sentences: Born in Brooklyn, New York in on 22 March 1886, James was educated at Eton College and Christchurch College, Oxford. He joined the Coldstream Guards at the outbreak of war in 1914, serving in Salonika.