Career
Of Māori descent, he identified with the Ngāti Rangitihi and Te Arawa iwi. He was born in Matata, Bay of Plenty, New Zealand in 1860. He contested the Eastern Maori electorate in the 1887 election and came third of four candidates.
Warbrick was one of six brothers, five of whom, Arthur, Frederick, Joe, William and Alfred himself, played with the New Zealand Native football team on their 1888-1889 tour of Britain, Ireland and Australia.