James Muir Miller was a dairy farmer, jackeroo and cattle auctioneer from the NSW South Coast who won state selection with impressive games for NSW Country against touring teams from the British Isles and New Zealand. He earned his Test debut in 1962 with an outstanding performance for NSW when they defeated New Zealand 12-11.

Set-backs, such as a knock-on in front of the posts against South Africa which saw him dropped, and criticism that he was too light for Test rugby, could not dampen his desire to play for Australia. After three years in the wilderness, he toured Britain and France with the Wallabies in 1966-67.

Jim 'Moose' Miller played 7 Tests, and was a feature of three memorable Australian victories: against England at the Sydney Sports Ground in 1963, against England at Twickenham in 1966 (England's worst defeat in 16 years, the Australians earning a standing ovation from the 65,000 Twickenham fans) and against Wales in Cardiff on that same tour.

A second-rower or prop, Miller finished his career playing club rugby for Manly.