General Sir James Handyside Marshall-Cornwall KCB CBE DSO MC FRSGS (27 May 1887 – 25 December 1985) was a 20th Century British Army soldier and military historian.

In 1916 he was promoted to temporary Major at the General Headquarters of the British Expeditionary Force (BEF), under Sir Douglas Haig.

[4] In 1919, after attending the first postwar course at the Staff College, Camberley,[5] Cornwall was sent to the peace conference in Paris, where he worked with Reginald Leeper and Harold Nicolson on the new boundaries of Europe.

[6] In 1934, after two years as commander of the 51st Highland division,[6] Royal Artillery, based at Perth, Scotland, Marshall-Cornwall was promoted the rank of Major-General.

[6] In May 1940 he went to France to help evacuate British troops from Cherbourg, commanding an ad hoc formation dubbed Norman Force, boarding the last ship to leave the port.

[6] Later that year he was sent by Winston Churchill to Turkey in an attempt to persuade the Turks to enter the war on the Allied side, a mission which failed.

[citation needed] Cornwall met Marjorie Coralie Scott Owen, who was driving an ambulance for a Red Cross mission to White Russian refugees, while encamped in the Izmit peninsula.