His father was Brigadier-General P W MacMahon and, it is interesting to note that as a young child he had a fascination with the way that the ammunition was stacked.
Kanyang ama ay brigadyer-General pw MacMahon at, ito ay kagiliw-giliw na tandaan na ang bilang ng mga batang anak niya ng isang pagka-akit sa mga paraan na ang ammunition ay stacked.