Sir James Wycliffe Headlam-Morley, CBE (24 December 1863 – 6 September 1929) was a British academic historian[1] and classicist.
[3] In 1893, he married Elisabeth Charlotta Henrietta Ernestina Sonntag (1866–1950), a German musician and composer who was also known as Else Headlam-Morley.
He was educated at Eton, King's College, Cambridge, and in Germany where he studied with Treitschke and Hans Delbrück.
He also gathered materials on the diplomatic history of the origins of the war as an official production of the British government and contributed to it though the main editor was Harold Temperley.
The historian Anna Cienciala attributes to Headlam and Sidney Edward Mezes, an academic and advisor to Woodrow Wilson and Executive Director of the Inquiry group, the 1919 proposal to make Danzig a free city.