Born in Sydney, Walker was schooled at Sydney Grammar and at aged nineteen, before he had made any state representative appearances, he was selected for the 1912 Australia rugby union tour of Canada and the USA.
Born in Sydney, Walker was schooled at Sydney Grammar and then joined the Eastern Suburbs club. At aged nineteen, before he had made any state representative appearances, he was selected for the 1912 Australia rugby union tour of Canada and the USA.