Whakakiia te rerenga e whai ake nei: I whanau a Grant ki Nairn i nga Maunga o Scottish, i te wahi ko tana papa te minita o te hahi, a i ako ia i Nairn Academy, Aberdeen Grammar School me Marischal College, Aberdeen. I te tau 1846 ka uru atu ia ki te ope taua o Inia. I kite ia i te mahi kaha i te
Sikh War (1848<unk>49), i mahi puta noa i te Indian Mutiny o 1857, ka whara i nga mahi mo te awhina o Lucknow.