Turnbull was an eager sportsman as a youth, and played rugby for Downside School. He matriculated to Cambridge, and at university joined not only the cricket team, but also
Cambridge University Rugby Club. One of the earliest rugby clubs he represented was
St. Peters in Cardiff. His elder brother,
Bernard Turnbull had already represented Wales by this time, and had also played club rugby for St. Peters. During the 1931–32 season, Turnbull played his first senior game for Cardiff, mainly playing at scrum-half, and by 1932 he was representing rugby at county level, playing for
Glamorgan. Turnbull was first selected to play for Wales in the opening match of the
1933 Home Nations Championship, played away to
England. Turnbull was one of seven new caps brought into the Welsh team, under the captaincy of
Watcyn Thomas, and was paired at half-back with Cardiff and
London Welsh regular
Harry Bowcott. The game ended in a narrow 7–3 win for Wales, with
Ronnie Boon scoring all the Welsh points which finally laid the 'Twickenham bogey', ten losses in ten visits, to rest. The Welsh selectors responded by selecting all 15 players to play the second game of the tournament against Scotland; but several late withdrawals forced the selectors to make last minute changes. Turnbull himself was forced to withdraw because of injury, which saw Bowcott also stand down to allow the introduction of the
Swansea half-back pairing of Morris and Evans to take their place. Wales were easily beaten. In the final game of the Championship, Turnbull was declared fit and he and Bowcott returned to the squad. The build-up to the game was over-shadowed by poor player conduct on the boat to Belfast, and then captain Thomas reshuffled some of the player positions against the wishes of the
Welsh Rugby Union, during the game. The Irish won 10-5, and the WRU reacted by discarding eleven of the team for the next season. Turnbull was one of the players who never played international rugby for Wales again. ==Bibliography==