Born in Stoke-on-Trent, Moore played for Millwall Athletic before a controversial move to local rivals Thames Ironworks, making his debut on 10 September 1898 in a 3–0 away win against Shepherd's Bush.
Their successor club West Ham United included Moore in their second game of the season on 8 September 1900, a 3–1 defeat to Millwall Athletic.
[5] He replaced Hugh Monteith who had kept goal in the opening game of the season, a 7–0 defeat to Gravesend United.
[citation needed] The rules also allowed the 'keeper to advance up to six yards from his goal-line at a penalty kick.
Moore would often advance the full six yards and in a match in 1899 against New Brompton, he saved a penalty from his six-yard line.