Whakaotihia te rerenga e whai ake nei: E rima noa nga ra i muri mai, me te pakarutanga o te Pakanga Boer, i whakawhiwhia a Knox ki te 13 o nga Brigade Infantry i runga i te whakatikatika i te wehenga 6th i raro i a General Kelly-Kenny, i hangaia hei waahanga o te South African Field Force. Whai muri i te Whakaora o Kimberley, i uru ia ki te
I te Pakanga o Paardeberg i te Hui-tanguru 1900, a i whara kinotia e te pupuhi i te uma. I te Poutu-te-rangi 1902, i tohua ia hei rangatira mo te Bloemfontein garrison i te Orange River Colony. Whai muri i te mutunga o te pakanga i te Pipiri o taua tau, ka hoki a Knox ki te United Kingdom i runga i te "SS Dunottar Castle", i tae atu ki Southampton i te Hurae 1902. Mo ana ratonga i te wa o te pakanga, e toru nga wa i whakahuatia ai ia i roto i nga Karere, i whakawhiwhia ki te Tohu o te Kuini o Awherika ki te Tonga me te Tohu o te Kingi o Awherika ki te Tonga, i whakatairangahia hei rangatira nui (i te 4 o Tihema 1899), a ka whakawhiwhia ia hei Knight Commander o te Order of the Bath (KCB) i te Paenga-whawha 1901 South Arica Honors list (ko te ota i whakairihia ki te 29 o Noema 1900, a ko ia anake i whakawhiwhia ki a ia i muri i tana hokinga ki te kaainga, na King Edward VII i Buckingham Palace i te 24 Oketopa 1902).