Henry Colden Antill Harrison (16 October 1836 – 2 September 1929) was an athlete and Australian rules footballer who played a leading role in pioneering the sport. Harrison's cousin, champion cricketer Tom Wills, captained an early incarnation of the Melbourne Football Club in 1858, and the following year co-wrote its laws―the basis of Australian rules football. Within a year, Harrison joined him in promoting the new code, and quickly emerged as a leading player, celebrated for his speed, strength and courage. He oversaw an 1866 revision of the code that formalised the running bounce, and captained Melbourne and Geelong before retiring from playing in 1872, after which he took on several important administrative roles, including the vice presidency of the newly formed Victorian Football As