Whakaotihia te rerenga kōrero e whai ake nei: I whānau a Williamson i te tau 1775. I uru ia ki te Royal Military Academy i Woolwich i te 8 o Akuhata 1791, a i whakawhiwhia ki a ia hei tuarua tuarua i roto i te Royal Artillery i te 1 o Hanuere 1794. I whakatairangahia ia ki te rangatira, i te 11 o Poutu-te-rangi 1794. I te Pipiri 1795, i mahi ia i te takutai o Parani, i te haerenga ki Quiberon Bay hei awhina i nga rangatira French. I te tau 1799, ka haere ia ki te Cape of Good Hope, ka mahi i te
Ko te Pakanga Tuatahi o Cape Frontier o taua tau. I taua tau, i whakawhiwhia ia ki te rangatira rangatira, i te 12 o Oketopa.