Barrie reported taking some of the characterisation of Peter and individual Lost Boys from things Davies and his younger brothers said or did.

Davies attended the Berkhamsted School followed by Eton College, where he excelled at sports (especially cricket) and was elected to the elite social club Pop while still an underclassman.

He later attended Trinity College, Cambridge, where he joined the Amateur Dramatic Club (ADC), following in the footsteps of both his uncle, actor Gerald du Maurier, and his dramatist guardian.

He received a commission as a second lieutenant in the King's Royal Rifle Corps and served in the trenches in Flanders[2] On the morning of 15 March 1915, Davies attended an early morning briefing with the battalion's colonel, where the officers were receiving instructions for an advance on the German position at St. Eloi (Ypres).

[4] Originally buried near where he fell, his remains were later moved to the Voormezeele Enclosures Commonwealth War Graves Commission Cemeteries in Voormezele, near Ypres, Belgium.