In 1972, he was runner-up to Leslie Driffield in the World Open Billiards Championship, which featured both amateurs and professionals competing against each other, losing the final 2,404–3,055.
In snooker, he defeated Dennis Taylor and Alex Higgins to reach the semi-finals of the 1976 World Professional Match-play Championship.
[3] Coached by Tom McCann,[4] Morgan won the Under-16 British Junior English Billiards Championship in January 1958, with a 400–260 victory over David Bend in the final.
[8] Aged 15, Morgan was expelled from St Mary's Christian Brothers' School after consistently missing classes to play the game.
[13] He represented Ireland at the 1968 World Amateur Snooker Championship, held in Australia, and reached the semi-final of the competition where he lost 3–8 to David Taylor, who went on to win the event.
[1] In 1972, Morgan won the Australian national billiards title against Albert Johnson, and held it unchallenged until defeated 3,238–3,608 by Robby Foldvari in 1985.
[17] Morgan finished fourth in the round-robin table with seven wins from eleven matches, which included victories against Clark McConachy, Clive Everton, and Jack Karnehm.
Charlton played his quarter-final and semi-final using his personal set of snooker balls, on a table of his choosing at the venue, finishing his final on 30 September.
Morgan defeated Simpson 19–11 and then travelled from their match location in Muswellbrook, New South Wales, to Sydney, then flew to Melbourne the following morning, the day the final was due to start.
[1] He exited the 1978 World Snooker Championship after his first match in the qualifying competition, defeated 7–9 by David Taylor, and at his next appearance, in 1980, eliminated Paul Thornley 9–4 before being whitewashed 0–9 by Steve Davis.
[35] In the 1981 World Snooker Championship qualifying competition, Morgan lost in the first round to Eddie Sinclair 8–9 and the following year he progressed past David Greaves 9–2 before losing 1–9 to Silvino Francisco.
[37] In the qualifying rounds of the 1983 International Open, he defeated Jack Fitzmaurice and Fred Davis before being eliminated by John Spencer.
[38] He won a play-off against Everton and Tony Meo after they had finished level in their first-stage qualifying group for the 1984 International Masters,[39] but lost to both David Taylor and Dave Martin at the second stage.
[40] In 1984 he again lost in the World Professional Billiards championship quarter-final to the player who went on to win the tournament, this time 759–1,347 to Mark Wildman, after qualifying by defeating Bernard Bennett 1,021–639.