William and Anne had three sons, George being the middle of the three. Maurice FitzGerald, one of George's two brothers, also went on to achieve academic success in the sciences, becoming Professor of Engineering at Queen's College Belfast. George's schooling was at home where, together with his brothers and sisters, he was tutored by M A Boole, who was George Boole 's sister.
Maurice FitzGerald, isa sa George's dalawang kapatid na lalaki, nagpunta din sa mga akademiko sa makamit tagumpay sa siyensiya, pagiging Professor of Engineering at Queen's College Belfast. George's-aaral ay sa bahay kung saan, kasama ang kanyang mga kapatid na lalaki at mga madre, siya ay tutored by MA Boole, na George Boole 's babae.