Tresadern made his England debut in April 1923, in the 2–2 Home International draw with Scotland, although he was not pleased with his performance.
[citation needed] He was part of the West Ham side that lost to Bolton Wanderers in the first ever FA Cup final to be held at Wembley.
After just two minutes Tresadern became entangled in the crowd after taking a throw-in and was unable to return to the pitch immediately.
This gave Bolton's David Jack the opportunity to shoot for goal; this shot beat West Ham goalkeeper Ted Hufton to give Bolton the lead, and hit a spectator who was standing pressed against the goal net, knocking him unconscious.
In June 1935, he left Palace to manage Tottenham Hotspur, but had little success at White Hart Lane, resigning to take over at Plymouth Argyle in April 1938 rather than wait to be sacked.