 Born in Otakou, Otago Heads, Ellison was educated at Te Aute College, where he was introduced to rugby. After moving to Wellington, Ellison played for the Poneke Football Club, and was selected to play for Wellington province. He was recruited into Joe Warbrick's privately organised Native football team in 1888, and continued to play for both Poneke and Wellington on his return from that tour. In 1892, he started to refine and popularise the wing-forward system of play, which was a vital element of New Zealand rugby's success until 1932. At the first NZRFU annual general meeting in 1893, he proposed that the playing colours of the New Zealand side should be predominantly black with a silver fern — a playing strip that would give the team their famous name of All Blacks. He retired from playing rugby after captaining the 1893 New Zealand side to New South Wales and Queensland, but continued in the sport as a coach and administrator. Ellison was the author of a coaching manual, The Art of Rugby Football, published in 1902.
