Inducted 2005. Selected for the All Blacks in 1946. He continued to play for the All Blacks, and in 1949 was selected as captain for the 1949 tour to South Africa. Allen retired from playing after the series. He went on to coach, and was a selector-coach for Auckland during their Ranfurly Shield era of the late 1950s. He was eventually an All Blacks selector before becoming All Blacks coach in 1966. The All Blacks reign under Allen was the team's most successful; they won all 14 of their Tests with him as coach.