The Times History of the First World War. Volume XXI: First World War. Events, campaigns and political developments ca. 1918 and the immediate aftermath of the war (1921)
The Times History of the War. Volume VI: First World War. Events, campaigns and political developments ca. 1915. Includes atlas for the western and eastern theatres, 68pp. (1921)
The Cambridge Medieval History.: Volume III : Germany and the Western Empire.
Co-Edited by H.M.Gwatkin, J.P.Whitney, J.R.Tanner and C.W.Previte-Orton (1924)
The Cambridge Medieval History.: Volume 1 : The Christian Roman Empire and the Foundation of the Teutonic Kingdoms.
Co-Edited by H. M. Gwatkin & J.P. Whitney (1924)