 He is mainly known for being the second kill of Manfred von Richthofen, AKA The Red Baron, over Cambrai Road, near Bapaume.Bellerby was born second of three sons in Doncaster, England, to Henry Thomas and Mary Eleanor Bellerby.On 25 September 1914, whilst his brothers joined the Westminster Dragoons, he enlisted in the City of London Yeomanry (Rough Riders).