Whakaotihia te rerenga e whai ake nei: Ko Parkes te tumuaki o mua, ā, ko ia inaianei te tumuaki o te oranga o te whakahaere aroha Cruse Bereavement Care. I mahi ia hei kaitohutohu me te kaitohutohu i muri mai i te aitua o Aberfan (Oketopa 21, 1966), te rererangi rererangi o Invicta International Airlines Flight 435 i Switzerland (Paenga-whāwhā 10, 1973),
Ko te ahi o te Bradford Football Club (Mei 11, 1985), te tukinga o te MS "Herald of Free Enterprise" i Belgium (Mati 6, 1987), me te pahūtanga o te Pan American Flight 103 i runga i Lockerbie (Hānuere 21, 1988). I runga i te tono a UNICEF, i mahi ia hei kaitohutohu i te whakaturanga o te Kaupapa Whakaora Whakaora i Rwanda i te Paenga-whāwhā 1995. I runga i te tono a te kawanatanga o Ingarangi, i awhina ia ki te whakarite i tetahi kaupapa tautoko hei awhina i nga whanau mai i te United Kingdom i rere atu i muri i nga whakaeke kaiwhakatuma o te Mahuru 11, 2001, i New York City. I te Paenga-whawha 2005, i tukuna a Parkes e te Awhina i nga Whare Hauora me Ann Dent ki Inia ki te aromatawai i nga hiahia hinengaro o nga tangata i mate i te ruu o te Moana Inia 2004 me te tsunami.