Whakaotihia te rerenga e whai ake nei: I whanau a Hoare i te ra o Saint Patrick i Calcutta ki nga matua Irish. Ko tōna pāpā he kaihautū awa. I te waru o ona tau i tukuna ia ki te kura i Ingarangi ki Margate College, katahi ka tiimata te whakangungu mo te kaute, a, i te mea kaore i taea e ia te haere ki Sandhurst, ka uru ia ki te Ope Taua. Ko te toa o te tamarikitanga o Hoare ko Sir Francis Drake. I te 20 o ona tau i uru atu ia ki te London Irish Rifles i te pakarutanga o te Pakanga Tuarua o te Ao, i muri mai ka uru atu ia ki te 2nd Reconnaissance Regiment o te Royal Armoured Corps hei tuarua tuarua me te whawhai i te
Ko te pakanga o Arakan i Burma me te Pakanga o Kohima i Inia. I whakawākia ia ki te tūranga o te rangatira. I te 1945, i marenatia ia ki a Elizabeth Stott i New Delhi, e toru ana tamariki. He tangata iti, i whakaahuatia a Hoare e te hunga i mohio ki a ia hei "tino maia" me te "tino ataahua".